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BEGIN:VEVENT
SUMMARY:Alain Goriely (Oxford University)
DTSTART;VALUE=DATE-TIME:20200602T160000Z
DTEND;VALUE=DATE-TIME:20200602T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/1
DESCRIPTION:Title: The surprising shape of planets\nby Alain Goriely (Oxford Uni
versity) as part of Maths seminars at the National University of Ireland G
alway\n\n\nAbstract\nWe usually picture planets as spheres. Yet\, the firs
t problem of gravitational physics was to determine the shape of an object
due to its own mass. In the case of a fluid planet\, this problem was co
nsidered so important that most of the great physicists and mathematicians
worked on it for the last 350 years before a satisfactory theory was esta
blished. In the case of a solid planet\, the problem is quite different an
d much more complicated. The problem is to determine the possible equilibr
ia of a planet modelled as a homogeneous compressible spherical elastic b
ody subject to its own gravitational field. In the absence of gravity the
initial radius is given and the density is constant. With gravity and for
small planets\, the elastic deformations are small enough so that the sph
erical equilibria can be readily obtained by using the theory of linear el
asticity. For larger or denser planets\, large deformations are possible
and surprising behaviours emerge as will be revealed during this talk.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sarah Muldoon (University at Buffalo)
DTSTART;VALUE=DATE-TIME:20200604T130000Z
DTEND;VALUE=DATE-TIME:20200604T140000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/2
DESCRIPTION:Title: Personalized brain network models\nby Sarah Muldoon (Universi
ty at Buffalo) as part of Maths seminars at the National University of Ire
land Galway\n\n\nAbstract\nPersonalized Brain Network Models (BNMs) are a
new type of computational tool that simulate a specific individual’s bra
in activity based on measured structural brain connections. These models h
ave been shown to be sensitive to individual differences in brain network
structure and allow one to perform in silico experiments in order to make
predictions about the effects of stimulation\, disease progression\, or dr
ug treatment at the level of a specific individual. I will describe how on
e build such computational models from neuroimaging data and describe work
using personalized BNMs to explore individual differences in brain struct
ure and function.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Krishnan Shankar (The University of Oklahoma)
DTSTART;VALUE=DATE-TIME:20200611T150000Z
DTEND;VALUE=DATE-TIME:20200611T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/3
DESCRIPTION:Title: A mathematical exploration\nby Krishnan Shankar (The Universi
ty of Oklahoma) as part of Maths seminars at the National University of Ir
eland Galway\n\n\nAbstract\nIn this talk we will explore a variety of math
ematical ideas in dynamical systems\, arithmetic and geometry. I will pre
sent three beautiful yet elementary constructions which point to a deeper
hidden structure in each case. We will explore\, for instance\, how billi
ard balls naturally spell out the digits of pi or how the arithmetic mean\
, geometric mean inequality of numbers leads to a deep\, unsolved problem
in geometry. While the full explanation of the "why" of these phenomena r
equire graduate level or advanced mathematics\, most of the talk is meant
to be accessible to anyone with a college level background in mathematics.
\n\nZOOM: https://zoom.us/j/98366657903?pwd=Y2FuMkZWbmJQd1NCeHAyQkRNak01Zz
09\n\nMEETING ID: 983 6665 7903 Password: 830340\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andrew Lobb (Durham University)
DTSTART;VALUE=DATE-TIME:20200618T100000Z
DTEND;VALUE=DATE-TIME:20200618T110000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/4
DESCRIPTION:Title: The smooth rectangular peg problem\nby Andrew Lobb (Durham Un
iversity) as part of Maths seminars at the National University of Ireland
Galway\n\n\nAbstract\nFor any smooth Jordan curve and rectangle in the pla
ne\, we show that there exist four points on the Jordan curve forming the
vertices of a rectangle similar to the given one. No expertize assumed.
Joint work with Josh Greene.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Hannah Conroy Broderick (NUI Galway)
DTSTART;VALUE=DATE-TIME:20200901T130000Z
DTEND;VALUE=DATE-TIME:20200901T140000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/5
DESCRIPTION:Title: Wrinkles and waves in soft dielectric plates\nby Hannah Conro
y Broderick (NUI Galway) as part of Maths seminars at the National Univers
ity of Ireland Galway\n\n\nAbstract\nSoft dielectric materials are smart m
aterials that deform in the presence of an electric field. They have poten
tial promising applications in devices such as artificial muscles and soft
robotics\, where there is great demand for materials that can undergo rep
eated large deformations. \n\nIn principle\, large deformations can be obt
ained by exploiting the so-called snap-through instability. However\, this
phenomenon is difficult to achieve and control in practice\, as the mater
ial often fails due to electric breakdown\, or due to wrinkles appearing o
n the surface of the material. Here we study in turn the stability of volt
age and charge-controlled soft dielectric plates. We investigate Hessian a
nd geometric instability modes. We find that voltage-controlled dielectric
s can wrinkle in compression and extension\, whereas charge-controlled die
lectrics can only wrinkle in compression. We find that charge-controlled a
ctuation is more stable than voltage-controlled actuation.\n\nStudies on w
aves in dielectric materials suggest the possibility of controlling the wa
ve velocity by applying an appropriate electric field. This paves the way
for applying acoustic non-destructive evaluation techniques to dielectric
plates\, a technique already used in purely elastic materials. Here we stu
dy Lamb wave propagation in dielectric plates subject to electrical and me
chanical loadings. We look at the effects of the pre-stress\, the electric
field and the strain-stiffening on the wave characteristics.\n\nThis work
relies on theoretical and numerical treatments\, using the multiphysics t
heory of nonlinear electro-elasticity\, the incremental theory of small de
formations and motions superposed on a large actuation\, the Stroh formali
sm\, the numerical resolution of boundary-value problems\, and Finite Elem
ent simulations.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Haixuan Yang (National University of Ireland Galway)
DTSTART;VALUE=DATE-TIME:20201008T150000Z
DTEND;VALUE=DATE-TIME:20201008T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/6
DESCRIPTION:Title: A Heat Diffusion Model on a graph with boundary conditions and it
s Applications\nby Haixuan Yang (National University of Ireland Galway
) as part of Maths seminars at the National University of Ireland Galway\n
\n\nAbstract\n15 years ago\, we developed a heat diffusion model on a grap
h\, and applied it to classification problems and ranking problems. This m
odel only has initial conditions\, but no boundary conditions. 17 years ag
o\, there was a famous method (Harmonic Method) using harmonic functions o
n a graph\, which has no initial conditions\, but has boundary conditions\
, and the solution is an equilibrium of heat diffusion models\, i.e.\, the
time goes infinity. Recently we considered a heat diffusion with both ini
tial conditions and boundary conditions. The labelled nodes in a graph are
set as boundary conditions that will exert their influence on other unlab
elled nodes while the initial guess on the unlabelled nodes are set as ini
tial conditions. The diffusion process thus balances these two sets of con
ditions: When times go to infinity\, it becomes equilibrium\, and thus the
method becomes the Harmonic Method\; When time is zero\, there is only in
itial guess. We believe that there are some cases\, for which the status b
efore the equilibrium is achieved is better. This is a joint work with Mo
han Timilsina\, Vit Novacek\, Mathieu d'Aquin at INSIGHT.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Peter Clarkson (University of Kent)
DTSTART;VALUE=DATE-TIME:20201112T160000Z
DTEND;VALUE=DATE-TIME:20201112T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/7
DESCRIPTION:Title: Some reflections on Athena SWAN\nby Peter Clarkson (Universit
y of Kent) as part of Maths seminars at the National University of Ireland
Galway\n\n\nAbstract\nIn this talk I shall give some personal reflections
of Athena SWAN applications based on my experience as the chair of my Sch
ool's Athena SWAN Self Assessment Team as an Athena SWAN panelist and as c
hair of the London Mathematical Society Good Practice Scheme steering comm
ittee. In particular I'll describe some aspects of good practice as well s
ome which in my opinion should be avoided.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Bharat Tripathi (National University of Ireland Galway)
DTSTART;VALUE=DATE-TIME:20201126T160000Z
DTEND;VALUE=DATE-TIME:20201126T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/8
DESCRIPTION:Title: On Modelling and Simulation of Nonlinear Waves for Biomedical Pro
blems\nby Bharat Tripathi (National University of Ireland Galway) as p
art of Maths seminars at the National University of Ireland Galway\n\n\nAb
stract\nBeing a new faculty at the School\, I would like to talk about my
doctoral and post-doctoral research work. It is on the development of math
ematical models and numerical methods describing the propagation of nonlin
ear-acoustic and nonlinear-shear waves in fluids and solids\, respectively
.\n\nMy doctoral work (at Sorbonne Université\, Paris\, France) was about
the development of a discontinuous Galerkin method for simulating acousti
c shock waves in air/water in 2D. This method was used to study the nonlin
ear reflection of acoustic shock waves on rigid surfaces\, ranging from th
e linear Snell-Descartes reflection to the weak von Neumann case. A convex
-concave surface was designed to show the formation of secondary smooth Ma
ch stem using the primary smooth Mach stem\, which to our knowledge was ne
ver observed before in acoustics. \n\nDuring my postdoctoral years (at Uni
versity of North Carolina at Chapel Hill\, USA)\, I was working on modelli
ng and simulation of shear shock waves in the brain in context of traumati
c brain injury. This led to the development of a system of nine equations
describing the nonlinear propagation of linearly-polarized shear waves in
relaxing soft solids with ability to incorporate an arbitrary frequency d
ependent attenuation/dispersion power-law. The model was then numerically
simulated using the piecewise parabolic finite volume method. This model/m
ethod was validated with experimental data and was used to show the format
ion of shear shock waves\, for the first time\, in a human head phantom.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Michael Tuite (National University of Ireland Galway)
DTSTART;VALUE=DATE-TIME:20201203T160000Z
DTEND;VALUE=DATE-TIME:20201203T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/9
DESCRIPTION:Title: Vertex operator algebras and a generalized MacMahon master theore
m\nby Michael Tuite (National University of Ireland Galway) as part of
Maths seminars at the National University of Ireland Galway\n\n\nAbstract
\nVertex operator algebras have remarkable links with number theory\, comb
inatorics\, geometry\, group theory and theoretical physics. In this talk
I discuss the application of a generalized MacMahon master theorem from en
umerative combinatorics to the description of the Heisenberg vertex operat
or algebra (the bosonic string in theoretical physics) on a Riemann surfac
e.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Richard Burke (National University of Ireland Galway)
DTSTART;VALUE=DATE-TIME:20201127T120000Z
DTEND;VALUE=DATE-TIME:20201127T130000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/10
DESCRIPTION:Title: Emergence in hybrid adaptive multi-agent systems\nby Richard
Burke (National University of Ireland Galway) as part of Maths seminars a
t the National University of Ireland Galway\n\n\nAbstract\nThis thesis inv
estigates a number of hybrid adaptive strategies\, to drive multi-agent sy
stems from initial states of disorder towards consensus or favourable conf
igurations. The dynamics of the agents and their communicative links\, rep
resented by nonlinear ODEs\, may be visualised as evolving networks. Numer
ical experiments supplement the mathematical models presented.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dúalta Ó Fionnagáin (National University of Ireland Galway)
DTSTART;VALUE=DATE-TIME:20201119T160000Z
DTEND;VALUE=DATE-TIME:20201119T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/11
DESCRIPTION:Title: Modelling the winds of low-mass stars like our Sun\nby Dúal
ta Ó Fionnagáin (National University of Ireland Galway) as part of Maths
seminars at the National University of Ireland Galway\n\n\nAbstract\nStar
s similar to the Sun evolve through their lifetime through two main mechan
isms\; the loss of mass and angular momentum. This occurs through the inte
raction of the stellar wind and the stellar magnetic field. For low-mass s
tars like our Sun\, detection of these winds is very difficult with curren
t telescopes. Using 3D magnetohydrodynamic modelling tools (BATS-R-US)\, w
e can quantify the winds from these stars\, constraining their possible ev
olutionary paths. Since stellar winds directly impact orbiting exoplanets\
, it also impacts their evolution and their potential habitability.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Viola Siconolfi (Bielefeld University)
DTSTART;VALUE=DATE-TIME:20201210T160000Z
DTEND;VALUE=DATE-TIME:20201210T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/12
DESCRIPTION:Title: Ricci curvature\, graphs and Coxeter groups\nby Viola Sicono
lfi (Bielefeld University) as part of Maths seminars at the National Unive
rsity of Ireland Galway\n\n\nAbstract\nI will talk about a notion of curva
ture for graphs introduced by Schmuckenschläger which is defined as an an
alogue of Ricci curvature. This quantity can be computed explicitly for va
rious graphs and\nallows to find bounds on the spectral gap of the graph
and isoperimetric-type inequalities.\nI will present some general results
on the computation of the discrete Ricci curvature of any locally finite g
raph. I will then focus on graphs associated with Coxeter groups: Bruhat g
raphs\, weak order graphs and Hasse diagrams of the Bruhat order.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Martin Winter (TU Chemnitz)
DTSTART;VALUE=DATE-TIME:20210304T160000Z
DTEND;VALUE=DATE-TIME:20210304T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/13
DESCRIPTION:Title: On Symmetry\, Rigidity and Spectrum of Graph Realizations and Po
lytopes\nby Martin Winter (TU Chemnitz) as part of Maths seminars at t
he National University of Ireland Galway\n\n\nAbstract\nA graph realizatio
n is an embedding of a graph into Euclidean space\, such as the skeleton o
f a polytope. We consider graph realizations and polytopes with prescribed
symmetries\, and we aske whether they can be continuously deformed withou
t losing these symmetries\, that is\, whether they are rigid or \nflexible
under the given symmetry constraints. We identify classes of symmetries f
or graphs and polytopes\, so that any realization of this symmetry is nece
ssarily rigid. We thereby demonstrate that spectral graph theory is a usef
ul tool in studying the interplay between symmetry and rigidity.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Thái Anh Nhan (Holy Names University\, CA)
DTSTART;VALUE=DATE-TIME:20210318T160000Z
DTEND;VALUE=DATE-TIME:20210318T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/14
DESCRIPTION:Title: Five years after my PhD: life\, work\, and research\nby Thá
i Anh Nhan (Holy Names University\, CA) as part of Maths seminars at the N
ational University of Ireland Galway\n\n\nAbstract\nI graduated with my Ph
.D. in 2015 under the supervision of Dr. Niall Madden. In this talk\, I wi
ll report a five-year pleasant adventure of my life including the changes
in life\, work\, and research. In particular\, for the research\, I will d
iscuss our recent result that answered a decades-old question in the field
of singularly perturbed differential equations regarding the finite-diffe
rence analysis on the Bakhvalov mesh for two-dimensional convection-diffus
ion problems.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:James Cruickshank (NUI Galway)
DTSTART;VALUE=DATE-TIME:20210218T160000Z
DTEND;VALUE=DATE-TIME:20210218T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/15
DESCRIPTION:Title: Rigidity and combinatorial topology\nby James Cruickshank (N
UI Galway) as part of Maths seminars at the National University of Ireland
Galway\n\n\nAbstract\nI will present an introduction of some of the conne
ctions between the rigidity theory of bar joint frameworks and combinatori
al topology. The foundational result in this respect is Cauchy's Rigidity
Theorem from 1832\, but there have been many interesting developments in m
ore recent times. No specialist knowledge of rigidity theory or of combina
torial topology will be assumed. I will finish by discussing some recent j
oint work with Bill Jackson (Queen Mary) and Shin-Ichi Tanigawa (Universit
y of Tokyo) on the global rigidity of triangulated surfaces.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Roberto Galizia (NUIG)
DTSTART;VALUE=DATE-TIME:20210415T080000Z
DTEND;VALUE=DATE-TIME:20210415T090000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/16
DESCRIPTION:Title: PhD viva -- Exploiting individual agent properties for analysis
and control of collective network evolution\nby Roberto Galizia (NUIG)
as part of Maths seminars at the National University of Ireland Galway\n\
n\nAbstract\nWe investigate linearly coupled dynamic networks made up of i
dentical agents. We study the principles in which the dynamical features o
f the underlying constituent agents transfer to the collective dynamics of
the entire network. This is carried out from two points of view: analysis
and control. In the former case\, we defined and discussed the Regions of
Reduced Dynamics\, a particular subset of the network parameter space in
which the behaviour of the entire network can be fully determined from the
dynamics of the underlying constituent agents. In the latter case\, we de
signed a decentralized control algorithm that drives networks towards a de
sired state while only acting on a subset of network nodes without using a
ny global information about the network.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pawel Dlotko (Polish Academy of Sciences)
DTSTART;VALUE=DATE-TIME:20211104T160000Z
DTEND;VALUE=DATE-TIME:20211104T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/17
DESCRIPTION:Title: Mild introduction to Topological Data Analysis (ONLINE)\nby
Pawel Dlotko (Polish Academy of Sciences) as part of Maths seminars at the
National University of Ireland Galway\n\n\nAbstract\nOften applied mathem
atics is considered to be restricted to differential equations and dynamic
al systems theory. Recently\, however\, we see a growth of combinatorial\,
geometrical and topological techniques used in applied sciences. In this
talk I will introduce two main techniques of applied topology: persistent
homology and mapper algorithm. Starting from discrete collections of point
s P we will use them to build descriptors summarizing the shape of P. The
talk will be illustrated with examples of applications of presented tools
in very different branches of physical\, medical and social sciences. We w
ill also discuss the interface of the presented methods with statistics/ m
achine learning.\n\nContact: Graham Ellis\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Romina Gaburro (University of Limerick)
DTSTART;VALUE=DATE-TIME:20210623T130000Z
DTEND;VALUE=DATE-TIME:20210623T140000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/18
DESCRIPTION:Title: Inverse problems and imaging\nby Romina Gaburro (University
of Limerick) as part of Maths seminars at the National University of Irela
nd Galway\n\n\nAbstract\nIn this talk we introduce the concept of inverse
problem\, the mathematical technique behind imaging and material character
isation. We explain its intrinsic ill-posed nature\, the idea of inversion
from data/measurements to parameter (describing a physical property of a
medium) and the mathematical challenges behind imaging.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Noemi Picco (Swansea University)
DTSTART;VALUE=DATE-TIME:20210624T103000Z
DTEND;VALUE=DATE-TIME:20210624T113000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/19
DESCRIPTION:Title: Modelling Drug Resistance in Cancer Across Scales\nby Noemi
Picco (Swansea University) as part of Maths seminars at the National Unive
rsity of Ireland Galway\n\n\nAbstract\nResistance to drug treatment for ma
ny types of cancer is poorly understood. In many cancer patients it appear
s in the form of a temporary response to the drug (with the tumour shrinki
ng)\, followed by relapse (regrowth). For a specific class of cancers (e.g
. melanoma and non small cell lung cancer) treated with so-called targeted
therapies\, resistance seems to be the result of complex interactions bet
ween the cancer cells\, the host tissue\, and the drug\, operating across
different spatial and temporal scales.\n\nTo fully understand cancer and i
ts response to treatment\, we are faced with the challenge of understandin
g how cells behave in the absence of a drug\, and how the dynamics shift w
hen treatment is applied.\n\nI will present two mathematical models that a
pproach this challenge at different levels (scales)\, to show how data-dri
ven modelling can describe the processes of interest and make testable pre
dictions. For both models I will present some preliminary findings and hig
hlight the current limitations in the interpretation of model predictions\
, and the importance of modelling in the design of treatment protocols abl
e to successfully control the emergence of resistance.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Giuseppe Zurlo (National University of Ireland Galway)
DTSTART;VALUE=DATE-TIME:20210916T150000Z
DTEND;VALUE=DATE-TIME:20210916T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/21
DESCRIPTION:Title: Growing\, melting\, twisting: three stories from mechanics (ONLI
NE)\nby Giuseppe Zurlo (National University of Ireland Galway) as part
of Maths seminars at the National University of Ireland Galway\n\n\nAbstr
act\nIn this talk I will give an informal account on three problems that I
have studied during my recent sabbatical leave. I will first talk of memo
ry in growing bodies\, like sandpiles or biological tissues\, shedding emp
hasis on the differential geometric nature of "memory". I will then talk o
f what happens when you use a 3D printer\, why often cracks form and how d
angerous neglecting this effect can be. I will finally talk of what happen
s when you twist a thin cord\, like the ones you may find in key holders:
after you twist them enough\, a kink is formed\, and here I provide a simp
le energetic explanation of this effect.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Harold Berjamin (NUI Galway)
DTSTART;VALUE=DATE-TIME:20211021T150000Z
DTEND;VALUE=DATE-TIME:20211021T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/22
DESCRIPTION:Title: Recent developments on the propagation of mechanical waves in so
ft solids\nby Harold Berjamin (NUI Galway) as part of Maths seminars a
t the National University of Ireland Galway\n\n\nAbstract\nIn this talk\,
I will give an overview of recent results obtained during my IRC postdocto
ral fellowship at NUI Galway\, covering several topics related to wave pro
pagation in soft solids. First\, the propagation of directional sound beam
s in elastic solids will be discussed. Second\, the propagation of nonline
ar plane waves in fluid-saturated porous media will be addressed. Then\, t
he modelling of viscoelastic dissipation will be considered\, including th
ermodynamic aspects\, acoustoelasticity theory\, and its application to th
e study of phononic crystals. Ongoing and future developments will also be
presented.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Quan Zhang (NUI Galway)
DTSTART;VALUE=DATE-TIME:20211028T150000Z
DTEND;VALUE=DATE-TIME:20211028T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/23
DESCRIPTION:Title: Low-Frequency Elastic Wave Manipulation and Vibration Isolation
with Metamaterials\nby Quan Zhang (NUI Galway) as part of Maths semina
rs at the National University of Ireland Galway\n\n\nAbstract\nControlling
wave propagation through materials is of great importance to both enginee
ring and fundamental research. Metamaterials have significantly expanded t
he available material parameter spaces and brought advances to our control
capability for wave propagation and vibration isolation. This talk focuse
s on low-frequency elastic wave control and vibration isolation with metam
aterials. The content includes the following parts\, topological metamater
ials with local resonance and the corresponding interface propagating stat
es\, tailored mechanical metamaterials with programmable quasi-zero-stiffn
ess (QZS) features for ultra-low frequency vibration isolation.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Faiza Alssaedi (NUI Galway)
DTSTART;VALUE=DATE-TIME:20211015T083000Z
DTEND;VALUE=DATE-TIME:20211015T093000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/24
DESCRIPTION:Title: Algorithms for the accurate and efficient solution of fourth ord
er boundary-layer problems\nby Faiza Alssaedi (NUI Galway) as part of
Maths seminars at the National University of Ireland Galway\n\nAbstract: T
BA\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Máire Ní Leathlobhair (Trinity College Dublin)
DTSTART;VALUE=DATE-TIME:20220421T150000Z
DTEND;VALUE=DATE-TIME:20220421T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/25
DESCRIPTION:Title: Timing landmark events in pre-cancerous evolution\nby Máire
Ní Leathlobhair (Trinity College Dublin) as part of Maths seminars at th
e National University of Ireland Galway\n\nLecture held in ADBG021.\n\nAbs
tract\nThe interplay of mutation\, copy number change\, structural rearran
gement and clonal expansion\, leaves a record of the life history of a can
cer inscribed in its genome. By applying recently developed bioinformatic
and statistical methods to sequencing data\, we can reconstruct this life
history\, and infer the timing of specific events and mutational processes
early in tumour development. In this seminar we’ll look at some example
s of this in long-latency diseases such as myeloproliferative neoplasms an
d testicular cancer.\n\nContact: Cathal Seoighe\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/25/
END:VEVENT
BEGIN:VEVENT
SUMMARY:confirmed
DTSTART;VALUE=DATE-TIME:20220203T160000Z
DTEND;VALUE=DATE-TIME:20220203T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/27
DESCRIPTION:Title: Presentation on two Master programmes\nby confirmed as part
of Maths seminars at the National University of Ireland Galway\n\n\nAbstra
ct\nContact: Aisling McCluskey\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/27/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dessislava Kochloukova (University of Campinas\, Brazil)
DTSTART;VALUE=DATE-TIME:20220210T160000Z
DTEND;VALUE=DATE-TIME:20220210T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/28
DESCRIPTION:Title: On the weak commutative construction in group theory\nby Des
sislava Kochloukova (University of Campinas\, Brazil) as part of Maths sem
inars at the National University of Ireland Galway\n\n\nAbstract\nWe will
discuss some old and some recent results on the weak commutativity constru
ction X(G) that associates to any group G a new group X(G). The definitio
n goes back to a paper of Said Sidki (1980) and later it was discovered th
at this construction has strong links with the non-abelian tensor square o
f G. We will give a survey on the properties of the construction X(G). One
of the new results that will be presented is a joint work with Martin Bri
dson that whenever G is finitely presented the group X(G) is finitely pres
ented too.\nContact: Graham Ellis\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/28/
END:VEVENT
BEGIN:VEVENT
SUMMARY:FYP
DTSTART;VALUE=DATE-TIME:20220217T160000Z
DTEND;VALUE=DATE-TIME:20220217T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/29
DESCRIPTION:Title: FYP presentations\nby FYP as part of Maths seminars at the N
ational University of Ireland Galway\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/29/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Workshop
DTSTART;VALUE=DATE-TIME:20220407T150000Z
DTEND;VALUE=DATE-TIME:20220407T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/30
DESCRIPTION:Title: workshop on enumerative combinatorics\nby Workshop as part o
f Maths seminars at the National University of Ireland Galway\n\n\nAbstrac
t\nNote: the workshop is into the usual seminar time slot. \nContact: Ange
la\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/30/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jason DeVito (University of Tennessee)
DTSTART;VALUE=DATE-TIME:20220602T150000Z
DTEND;VALUE=DATE-TIME:20220602T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/32
DESCRIPTION:Title: The soul theorem and its converse\nby Jason DeVito (Universi
ty of Tennessee) as part of Maths seminars at the National University of I
reland Galway\n\nLecture held in ADB1020.\n\nAbstract\nCheeger and Gromoll
's Soul theorem gives a fundamental structure result for any complete non-
compact Riemannian manifold with non-negative sectional curvature: any suc
h example must have the structure of a vector bundle over a closed non-neg
atively curved Riemannian manifold. But\, given a closed non-negatively c
urved Riemannian manifold of non-negative sectional curvature\, which vect
or bundles over it admit non-negatively curved metrics? After surveying p
revious results and constructions for homogeneous spaces and cohomogeneity
one manifolds\, we will discuss their applicability to Riemannian quotien
ts of these spaces. We will then present a new construction which enlarge
s the class of known examples. This is joint work with David González-Á
lvaro.\nContact: Martin Kerin\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/32/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Róisín Hill (NUIG)
DTSTART;VALUE=DATE-TIME:20220516T083000Z
DTEND;VALUE=DATE-TIME:20220516T093000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/33
DESCRIPTION:Title: PhD viva talk: Moving mesh methods for layer phenomena problems<
/a>\nby Róisín Hill (NUIG) as part of Maths seminars at the National Uni
versity of Ireland Galway\n\nLecture held in AC201.\n\nAbstract\nLocation:
AC201 and online\nContact: Niall Madden\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/33/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Maeve McCarthy
DTSTART;VALUE=DATE-TIME:20220512T160000Z
DTEND;VALUE=DATE-TIME:20220512T170000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/34
DESCRIPTION:Title: Control of Mosquito Populations Through the Introduction of Ster
ile Mosquitoes\nby Maeve McCarthy as part of Maths seminars at the Nat
ional University of Ireland Galway\n\n\nAbstract\nAs part of "Celebrating
Women in Mathematics in 2022" on May 12\, the NUI Galway SIAM Chapter will
host a talk on Zoom by\nProf Maeve McCarthy\, Murray State University\, o
n "Control of Mosquito Populations Through the Introduction of Sterile Mos
quitoes". The talk describes how differential equations can be used to mod
el of mosquito control\, and introduces some optimal control theory. It is
aimed at a general undergraduate audience.\n\nMaeve McCarthy is a graduat
e of NUI Galway. She earned her PhD from Rice University\, and is now the
Jesse D. Jones Endowed Professor of Mathematics at Murray State\, Kentucky
. She's has served as executive director of the Association for Women in M
athematics. For more about Maeve\, see https://en.wikipedia.org/wiki/Maeve
_McCarthy\n\nTo learn more about the significance of 12 May\, see https://
may12.womeninmaths.org/why\n\nContact: NUI Galway SIAM Student Chapter\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/34/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Stephen Russel (Valeo)
DTSTART;VALUE=DATE-TIME:20220523T150000Z
DTEND;VALUE=DATE-TIME:20220523T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/35
DESCRIPTION:Title: A vision based approach to driver assistance systems\nby Ste
phen Russel (Valeo) as part of Maths seminars at the National University o
f Ireland Galway\n\nLecture held in ADB1020.\n\nAbstract\nIn most modern v
ehicles today\, advanced driver assistance systems are implemented in orde
r to improve road safety and driver comfort. As this technology becomes mo
re sophisticated\, increased levels of vehicle autonomy are becoming a rea
lity. This is achieved by processing and manipulating data that is collect
ed from sensors placed around the vehicle. Vision-based systems use camera
s as their primary source of data. In this talk\, we will look at the role
that computer vision plays in the development of driver assistance system
s\, together with some of the mathematics involved that make it all possib
le.\n\nContact: Valentina Balbi\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/35/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Antonia Trotta (Medtronic)
DTSTART;VALUE=DATE-TIME:20220525T150000Z
DTEND;VALUE=DATE-TIME:20220525T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/36
DESCRIPTION:Title: Finite Element Analysis - Application to Medical Device Design\nby Antonia Trotta (Medtronic) as part of Maths seminars at the Nationa
l University of Ireland Galway\n\nLecture held in ADB1020.\n\nAbstract\nTr
anscatheter Aortic Valve Replacement (TAVR) is a minimally invasive proced
ure for the replacement of a diseased aortic valve. During the procedure\,
a delivery catheter system (DCS) is used to guide the TAV to the heart. T
he TAV is then deployed over the native valve. Finite Element (FE) modelli
ng is extensively used during the development phase of the DCS to improve
device design and performance. The aim of this talk is to provide examples
of applications of finite element modelling to DCS design. In particular\
, the talk will focus on a FE model developed to predict the performance o
f the DCS during tracking\, where a number of parameters affecting the per
formance of the DCS were investigated.\n\nContact: Valentina Balbi\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/36/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Beatrice Charamba (NUIG)
DTSTART;VALUE=DATE-TIME:20220614T083000Z
DTEND;VALUE=DATE-TIME:20220614T093000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/37
DESCRIPTION:Title: PhD viva talk: A Bayesian functional concurrent model for missin
g irregular functional data\nby Beatrice Charamba (NUIG) as part of Ma
ths seminars at the National University of Ireland Galway\n\nLecture held
in ADB1020.\nAbstract: TBA\n\nContact: Andrew Simpkin\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/37/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Sean-TBD
DTSTART;VALUE=DATE-TIME:20221013T150000Z
DTEND;VALUE=DATE-TIME:20221013T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/38
DESCRIPTION:by Sean-TBD as part of Maths seminars at the National Universi
ty of Ireland Galway\n\n\nAbstract\nDiscussing a joint seminar with Eng\nC
ontact: Martin Meere & William Ronan\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/38/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kelvin Killeen
DTSTART;VALUE=DATE-TIME:20220913T110000Z
DTEND;VALUE=DATE-TIME:20220913T120000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/39
DESCRIPTION:Title: PhD viva talk: Computing invariants of knotted manifolds\nby
Kelvin Killeen as part of Maths seminars at the National University of Ir
eland Galway\n\nLecture held in SC200B.\nAbstract: TBA\n\n"Sandwiches will
be served in the School common room to all who are hungry at 12.45pm on T
uesday 13 September. This is prior to Kelvin Killeen's PhD viva which take
s place at 2pm that day.\n\nAt 12pm in the video conference room - SC200B
on the Concourse - Kelvin will give a 30-minute presentation on his thesis
work:\n\nComputing invariants of knotted manifolds\nKelvin Killeen\n12pm
13 Sept 2022\, SC200B"\n\nContact: Graham Ellis\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/39/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gotz Pfeiffer (University of Galway)
DTSTART;VALUE=DATE-TIME:20220929T150000Z
DTEND;VALUE=DATE-TIME:20220929T160000Z
DTSTAMP;VALUE=DATE-TIME:20220927T053151Z
UID:mathseminarsnuig/40
DESCRIPTION:Title: Falling Powers and the Algebra of Descents\nby Gotz Pfeiffer
(University of Galway) as part of Maths seminars at the National Universi
ty of Ireland Galway\n\nLecture held in ADB1020.\n\nAbstract\nA finite Cox
eter group of classical type A\, B or D contains a chain of\nsubgroups of
the same type. We show that intersections of conjugates\nof these subgrou
ps are again of the same type\, and make precise in\nwhich sense and to wh
at extent this property is exclusive to the\nclassical types of Coxeter gr
oups. As the main tool for the proof we\nuse Solomon’s descent algebra.
Using Stirling numbers\, we express\ncertain basis elements of the desce
nt algebra as polynomials and\nderive explicit multiplication formulas for
a commutative subalgebra\nof the descent algebra. This is joint work wit
h Linus Hellebrandt.\n\nCoffee/tea/cakes/biscuits will be served in ADBG02
2 from 3:30.\n
LOCATION:https://researchseminars.org/talk/mathseminarsnuig/40/
END:VEVENT
END:VCALENDAR