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BEGIN:VEVENT
SUMMARY:Axel Kleinschmidt (AEI Potsdam)
DTSTART;VALUE=DATE-TIME:20200501T123000Z
DTEND;VALUE=DATE-TIME:20200501T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/1
DESCRIPTION:Title: EFTs and ExFTs\nby Axel Kleinschmidt (AEI Potsdam) as p
art of Exceptional geometry seminar series\n\n\nAbstract\nI will discuss h
ow exceptional field theory can be used to compute aspects of the low-ener
gy effective field theory description of type II string theory. Since exce
ptional field theory also includes the description of (exotic) branes\, on
e can also determine the exact non-perturbative contributions to certain h
igher-derivative couplings. Emphasis will be put on recent advances for 1/
8-BPS couplings that are connected to tropical limits of string invariants
at genus two.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Riccardo Borsato (Santiago de Compostela U.\, IGFAE)
DTSTART;VALUE=DATE-TIME:20200515T123000Z
DTEND;VALUE=DATE-TIME:20200515T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/2
DESCRIPTION:Title: Local beta-shifts and alpha'-corrections\nby Riccardo B
orsato (Santiago de Compostela U.\, IGFAE) as part of Exceptional geometry
seminar series\n\n\nAbstract\nLocal (i.e. non-constant) beta shifts of O(
D\,D) are a solution-generating technique in supergravity\, when additiona
l conditions are imposed on beta. In the literature this construction has
been known as "homogeneous Yang-Baxter deformation"\, and it was first int
roduced to generate integrable deformations of 2d sigma-models. Interest o
n such deformations is also motivated by their relation to non-abelian T-d
uality. In this talk I will review some aspects of this subject and I will
explain how to obtain alpha'-corrections for the deformed backgrounds by
exploiting the Double Field Theory formulation.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:David Tennyson (Imperial College London)
DTSTART;VALUE=DATE-TIME:20200508T123000Z
DTEND;VALUE=DATE-TIME:20200508T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/3
DESCRIPTION:Title: Generalising G2 geometry: involutivity\, moment maps an
d moduli\nby David Tennyson (Imperial College London) as part of Exception
al geometry seminar series\n\n\nAbstract\nUnderstanding the geometry of fl
ux backgrounds of string theory and M-theory is an important problem in ph
enomenology. Most attempts at this require studying backgrounds according
to torsion classes\, or treating the flux perturbatively through moduli st
abilisation. However\, in both cases we either lose analytic tractability
by losing the integrable G-structures that characterise the fluxless backg
rounds\, or we get only approximate results for small flux. In this talk w
e will show that generic flux backgrounds can be described by integrable S
U(7) structures in exceptional generalised geometry. These structures have
properties reminiscent of conventional complex structures\, being describ
ed by an involutive subbundle of the generalised tangent bundle\, and a va
nishing moment map. Using this structure we will be able to find the exact
moduli of broad classes of flux backgrounds. This description of flux bac
kgrounds also provides a new interpretation of G2 manifolds\, which may ha
ve interesting links with geometric invariant theory and new exceptional H
itchin functionals.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Chris Blair (Vrije U. Brussels)
DTSTART;VALUE=DATE-TIME:20200522T123000Z
DTEND;VALUE=DATE-TIME:20200522T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/4
DESCRIPTION:Title: Non-relativistic duality and TTbar deformations\nby Chr
is Blair (Vrije U. Brussels) as part of Exceptional geometry seminar serie
s\n\n\nAbstract\nStarting with some particular physical theory\, we are of
ten interested in then exploring the space of all physical theories either
by adding deformations or taking limits. I will describe a connection bet
ween two seemingly unrelated such explorations. The first is the TTbar def
ormation of two-dimensional field theories. The second is the non-relativi
stic limit of string theory. It is well-known that the TTbar deformation o
f D free bosons leads to the Nambu-Goto action in D+2 dimensions\; I will
explain how the limit where the deformation parameter returns to zero can
be viewed as a non-relativistic limit of the string. In order to describe
and generalise this correspondence\, I will use intuition gained from the
O(D\,D) covariant "doubled" formulation of string theory geometry. This is
natural here as TTbar deformations can be viewed as TsT or bivector trans
formations\, while non-relativistic limits which are singular in terms of
the standard spacetime geometry become well-defined in terms of doubled va
riables. Time permitting I will say something about possible generalisatio
ns using exceptional geometry.\n\nBased on: https://arxiv.org/abs/2002.124
13\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gregoire Josse (LPTHE Paris)
DTSTART;VALUE=DATE-TIME:20200529T123000Z
DTEND;VALUE=DATE-TIME:20200529T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/5
DESCRIPTION:Title: Generalised Geometry and consistent truncation\nby Greg
oire Josse (LPTHE Paris) as part of Exceptional geometry seminar series\n\
n\nAbstract\nConsistent truncations of ten- and eleven- dimensions supergr
avity are useful tools in order to derive lower-dimensional effective theo
ry\, but are usually difficult to obtain. Generalised geometry provides a
well suited framework to derive consistent truncations in arbitrary dimen
sion and with different amount of supersymmetry\, based on the notion of g
eneralised G-structure. In this talk I will present first the general idea
s in generic dimension and amount of supersymmetry. Then I will show how t
o apply the formalism to truncations to half-maximal supergravity in five
dimensions. As concrete examples\, I will present an M-theory truncation t
hat contains the Maldacena Nunez solutions for M5-branes wrapped on a Riem
ann surface.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Camille Eloy (ENS Lyon)
DTSTART;VALUE=DATE-TIME:20200605T123000Z
DTEND;VALUE=DATE-TIME:20200605T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/6
DESCRIPTION:Title: Duality invariance and higher derivatives\nby Camille E
loy (ENS Lyon) as part of Exceptional geometry seminar series\n\n\nAbstrac
t\nT-duality implies that string theories\, once compactified on a d-dimen
sional torus\, must have a global O(d\,d)symmetry. The exact interplay bet
ween this duality and α'-corrections is however not known. In this talk\,
I will expose new tools to tackle this problem and show\, considering the
bosonic string theory to first order in α'\, that this symmetry requires
a Green-Schwarz type mechanism for α'-deformed O(d\,d) transformati
ons.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Olaf Hohm (Humboldt U. Berlin)
DTSTART;VALUE=DATE-TIME:20200612T133000Z
DTEND;VALUE=DATE-TIME:20200612T143000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/7
DESCRIPTION:Title: Duality Hierarchies (UNUSUAL TIME)\nby Olaf Hohm (Humbo
ldt U. Berlin) as part of Exceptional geometry seminar series\n\n\nAbstrac
t\nGauged supergravity as well as double and exceptional field theory can
be formulated in terms of a hierarchy of duality relations between curvatu
res originating from the tensor hierarchy. The needed higher algebraic str
uctures can be derived from a differential graded Lie algebra.\nI outline
how exceptional field theory fits into this scheme by showing that its gen
eralized geometric structures can be naturally interpreted in terms of an
embedding tensor map and an infinite-dimensional Lie algebra.\n\n(Seminar
starts one hour later than usual).\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Aybike Catal-Ozer (Tech. U. Istanbul)
DTSTART;VALUE=DATE-TIME:20200619T123000Z
DTEND;VALUE=DATE-TIME:20200619T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/8
DESCRIPTION:Title: Non-abelian T-duality as a transformation in double fie
ld theory\nby Aybike Catal-Ozer (Tech. U. Istanbul) as part of Exceptional
geometry seminar series\n\n\nAbstract\nWe show that Non-Abelian T-duality
(NATD) can be described as a coordinate dependent O(D\,D) transformation
for supergravity fields in the NS-NS sector and as a Pin(D\,D) transformat
ion for the fields in the RR sector. This enables us to show that NATD is
a solution generating transformation in Double Field Theory (DFT)\, by reg
arding the transformed fields as duality twisted fields in the context ofG
auged Double Field Theory (GDFT) of Type II strings. When the isometry alg
ebra is non-unimodular\, consistency of GDFT forces the generalized dilato
n field to have a linear dependence on the winding type coordinates of DFT
\, implying that the transformed fields satisfy the field equations of DFT
in the generalized supergravity frame. We also discuss briefly the analog
ous story for Yang-Baxterdeformations.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gianluca Inverso (Queen Mary U. of London and INFN sez. di Padova)
DTSTART;VALUE=DATE-TIME:20200626T123000Z
DTEND;VALUE=DATE-TIME:20200626T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/9
DESCRIPTION:Title: On uplift conditions for gauged supergravities\nby Gian
luca Inverso (Queen Mary U. of London and INFN sez. di Padova) as part of
Exceptional geometry seminar series\n\n\nAbstract\nSupergravity theories c
an be consistently truncated to lower dimensional gauged supergravities\,
which has many applications especially for the purpose of solution generat
ion. A much studied class of truncations are generalised Scherk–Schwarz
(gSS) reductions. While the principle of such truncations is well-understo
od and many examples are known\, there is no complete classification of gS
S reductions. Conversely\, it can be difficult to know if a specific gauge
d supergravity can arise from a generalised Scherk–Schwarz truncation of
some higher-dimensional model.\nI will review some results on the general
recipe for constructing generalised Scherk–Schwarz uplifts of gauged su
pergravities and on the conditions for such uplifts to exist. I will then
discuss work in progress in rephrasing such uplift conditions as linear co
nstraints and comment on the extension to three-dimensional gauged supergr
avities and lower\, where the associated exceptional geometries become mor
e complicated.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Victor Lekeu (Imperial College London)
DTSTART;VALUE=DATE-TIME:20200710T123000Z
DTEND;VALUE=DATE-TIME:20200710T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/10
DESCRIPTION:Title: Homotopy transfer and L-infinity algebras\nby Victor Le
keu (Imperial College London) as part of Exceptional geometry seminar seri
es\n\n\nAbstract\nL-infinity algebras are a generalization of Lie algebras
involving\,besides a 2-bracket\, a potentially infinite number of higher-
order brackets which satisfy generalized Jacobi identities. In particular\
, the usual Jacobi identity for the 2-bracket is violated by terms involvi
ng a 3-bracket. Originally discovered in physics in the context of closed
string field theory\, it has since been understood that an L-infinity alge
bra can in fact be associated to any classical field theory\; the Jacobi i
dentities then encode gauge-invariance of the equations of motion\, Noethe
r identities and all that\, in a way similar to the BRST-BV field-antifiel
d formalism. \n In this talk\, I will first review the definition of L-
infinity algebras\, in two complementary ways: 1) the original formulation
involving an infinite number of brackets\, which can be neatly packaged i
n a nilpotent coderivation\, and 2) the dual picture\, where L-infinity re
lations are encoded in a nilpotent derivation. (For field theories\, this
derivation is nothing but the BRST-BV differential.) Then\, I will explain
the mathematical notion of homotopy transfer: how\, under certain conditi
ons\, the L-infinity structure can descend to a subspace of the original v
ector space. In the field theory context\, this corresponds to the notion
of (tree-level) integrating out of degrees of freedom\, with the smaller L
-infinity algebra encoding the algebraic structure of the effective theory
. \n This is based on work in progress with Alex S. Arvanitakis\, Chris
Hull and Olaf Hohm.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Saskia Demulder (MPI Munich)
DTSTART;VALUE=DATE-TIME:20200717T123000Z
DTEND;VALUE=DATE-TIME:20200717T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/11
DESCRIPTION:Title: Integrable deformation of CPn and generalised Kähler g
eometry\nby Saskia Demulder (MPI Munich) as part of Exceptional geometry s
eminar series\n\n\nAbstract\nGeneralised geometry has proven to be a centr
al framework to understand T- and U-duality. In particular it provides a c
ritical language to understand two-dimensional deformations of non-linear
sigma-models on group manifolds and coset spaces which admit Poisson-Lie s
ymmetry. This latter can be seen as a relaxation of the notion of isometry
allowing one to perform a generalised notion of T-duality. In this talk
I will discuss joint work with F. Hassler\, G. Piccinini\, D. Thompson\, w
here we studied integrable deformations of CPn background. Notwithstanding
the à priori complexity of these deformations\, we show how the deformed
CPn background is an example of a bi-Hermitian or generalised Kähler geo
metry. In addition we explain how the generalised Kähler potential can be
constructed for the deformed CPn geometry and provide explicit forms for
n=1\,2.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dan Butter (Texas A M)
DTSTART;VALUE=DATE-TIME:20200724T133000Z
DTEND;VALUE=DATE-TIME:20200724T143000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/12
DESCRIPTION:Title: E_7 ExFT in superspace [UNUSUAL TIME!]\nby Dan Butter (
Texas A M) as part of Exceptional geometry seminar series\n\n\nAbstract\nE
xceptional field theory (ExFT) provides a framework where T and U-duality
can be made manifest. In this talk\, I will discuss how supersymmetry can
also be made manifest in a superspace ExFT. In this approach\, the fermion
ic coordinates are unified with the external spacetime coordinates\, which
together are acted on by external superdiffeomorphisms. The internal spac
e and its section condition remain purely bosonic. This corresponds to the
simplest way one might construct an exceptional superspace\, but even thi
s proves surprising: it cannot be done directly with the original supersym
metric formulations of ExFT\, and one must instead relax or reformulate ce
rtain features (such as the vielbein postulates). I will sketch how this w
orks for the case of E_7. The superspace Bianchi identities then lead to t
he explicit form of the on-shell p-form curvatures as well as their dualit
y relations. Various applications will also be discussed.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Niall Macpherson (IIP\, Brazil)
DTSTART;VALUE=DATE-TIME:20200731T123000Z
DTEND;VALUE=DATE-TIME:20200731T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/13
DESCRIPTION:Title: AdS$_3$ string vacua and duals to small ${\\cal N}=(4\,
0)$ CFTs\nby Niall Macpherson (IIP\, Brazil) as part of Exceptional geomet
ry seminar series\n\n\nAbstract\nThe AdS$_3$/CFT$_2$ correspondence provid
es the best arena to test the holographic paradigm. This is simultaneously
due to the relative tractability of 2d CFTs and the world sheet theory on
AdS$_3$ backgrounds. Despite this\, when compared to their higher dimensi
onal counterparts\, little effort has been made to construct AdS$_3$ strin
g vacua. I will discuss an ongoing program to fill this gap.\n\nThere exis
ts a rich variety of superconformal algebras in 2d\, with distinct option
s even for a fixed number of supercharges. This makes the problem of class
ifying holographic duals to CFTs realising these both interesting and broa
d. I will discuss how one may systematically realise the various algebras
in supergravity\, and make use of G-structure techniques to find new class
es of solutions in 10 and 11 dimensions. Particular emphasis will be given
to a class of solutions in massive IIA preserving small ${\\cal N}=(4\,0)
$ supersymmetry\, for which there is a concrete proposal for dual CFTs.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Tomas Ortin (Madrid IFT)
DTSTART;VALUE=DATE-TIME:20200807T123000Z
DTEND;VALUE=DATE-TIME:20200807T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/14
DESCRIPTION:Title: Compactification\, duality and black-hole entropy in st
ringy black hole\nby Tomas Ortin (Madrid IFT) as part of Exceptional geom
etry seminar series\n\n\nAbstract\nIn this talk I will review results obta
ined by our group over the last few years concerning the calculation of al
pha' corrections of 4- and 5-dimensional stringy black-hole geometries and
the computation of their Wald entropies\, always in the context of the He
terotic Superstring effective action.\n\nFirst\, I will describe the corre
ctions to that action in the Bergshoeff-de Roo formalism and how we can co
mpute the corresponding corrections to the simplest 5- and 4-dimensional (
3- and 4-charge) stringy black holes.\n\nThen\, I will comment on the prob
lems surrounding the application of the Iyer-Wald prescription to the calc
ulation of the Wald entropy of those black holes directly in terms of thei
r 10-dimensional oxidized counterparts and I will argue that the calculati
on has to be done using the 4- and 5-dimensional actions.\n\nI will then s
how how to obtain these actions by direct dimensional reduction and how th
ey provide us with alpha'-corrected T-duality rules. I will derive duality
invariant Wald entropy formulas using the Iyer-Wald prescription and I wi
ll show that the entropies obtained satisfy the expected properties.\n\nFi
nally\, I will comment on the many unresolved problems related to all thes
e issues.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Luigi Alfonsi
DTSTART;VALUE=DATE-TIME:20200828T123000Z
DTEND;VALUE=DATE-TIME:20200828T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/15
DESCRIPTION:Title: Higher geometric aspects of global Double Field Theory\
nby Luigi Alfonsi as part of Exceptional geometry seminar series\n\n\nAbst
ract\nHigher differential geometry is a generalization of differential geo
metry\, where ordinary geometric structures are replaced by their L∞-ver
sions (such as L∞groups and L∞algebras). This formalism let the concep
t of principal bundle be generalized to the one of "bundle gerbe". This ge
ometric object can be equipped with a connection\, whose parallel transpor
t is defined on surfaces instead of on paths. This will be exactly the glo
bal formalization of the Kalb-Ramond field. We can then say that bundle ge
rbes are for strings what principal bundles are for gauge particles.\n\nDo
uble Field Theory is often referred to as a generalization of Kaluza-Klei
n Theory that unifies a metric and a Kalb-Ramond field\, instead of a gaug
e field. Can this statement be made geometrically precise? In this talk I
will give a simple introduction to higher differential geometry\, then I w
ill explore the idea that DFT can be naturally globalized in this geometri
c formalism. Finally I will apply this construction to obtain some example
s of T-duality.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Henning Samtleben
DTSTART;VALUE=DATE-TIME:20200904T123000Z
DTEND;VALUE=DATE-TIME:20200904T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/16
DESCRIPTION:Title: Toward exotic 6D supergravities: Beyond exceptional fie
ld theory\nby Henning Samtleben as part of Exceptional geometry seminar se
ries\n\n\nAbstract\nExotic supergravities are six-dimensional theories wit
h chiral maximal (4\,0) and (3\,1) supersymmetry\, which instead of a grav
iton feature exotic gauge fields with non-standard Young tableaux represen
tations\, subject to selfduality constraints. After reduction to 5D they a
ll share the field content of standard maximal supergravity. While so far
these theories are only known in the free limit\, their interacting versio
ns were conjectured by C. Hull to exist and to describe strong coupling li
mits of N=8 theories in 5D. \n\nI present novel actions in a 5+1 split of
coordinates whose field equations reproduce those of the free bosonic (4\,
0) and (3\,1) theory\, respectively\, including the selfduality relations.
I discuss evidence for a master exceptional field theory formulation with
an extended section constraint that\, depending on the solution\, produce
s the (4\,0)\, (3\,1) or the conventional (2\,2) theory.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Gabriel Larios
DTSTART;VALUE=DATE-TIME:20200911T123000Z
DTEND;VALUE=DATE-TIME:20200911T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/17
DESCRIPTION:Title: Kaluza-Klein spectra and consistent truncations\nby Gab
riel Larios as part of Exceptional geometry seminar series\n\n\nAbstract\n
Kaluza-Klein spectra on string/M-theory solutions depend significantly on
whether the solution can be obtained from uplift of a maximal gauged super
gravity. For some solutions of M-theory\, mIIA and IIB obtained from uplif
t\, I will present the spectrum of KK gravitons and discuss a persistent f
orm of universality when solutions with same (super)symmetry and supergrav
ity spectrum are present in different theories. The masses thus found can
be obtained from an SL(8)-covariant mass matrix whose trace provides the u
niversal coefficients.\n\nIn the second part of the talk\, I will discuss
the spectrum of KK gravitons around the N=2 AdS_4 solution that is dual to
the IR of a cubic deformation of ABJM. This solution cannot be obtained f
rom uplift of an N=8 D=4theory\, and this seems to be linked to the fact t
hat its metric cannot be isometrically embedded in R^8. Further\, the allo
cation of modes with different spins in N=2 supermultiplets cannot be made
KK level by KK level\, but needs space invaders.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Charles Strickland-Constable
DTSTART;VALUE=DATE-TIME:20200918T123000Z
DTEND;VALUE=DATE-TIME:20200918T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/18
DESCRIPTION:Title: On symmetries and dynamics of exotic supermultiplets\nb
y Charles Strickland-Constable as part of Exceptional geometry seminar ser
ies\n\n\nAbstract\nI will discuss recent work with Ruben Minasian and Yi Z
hang on six-dimensional exotic supermultiplets. The main focus of the talk
will be on the relationship between these multiplets and exceptional symm
etries. In particular I will discuss the non-existence of a standard space
time "section" for these theories and how the exotic graviton appears in t
he SL(3\,R) Ehlers symmetry term in algebraic decompositions to three dime
nsions. I will also present an overview of arguments suggesting that the d
ynamics of these theories may not reduce to those of supergravity in five
dimensions and sketch a proposed construction which connects them to three
-dimensional supergravity.\n
END:VEVENT
BEGIN:VEVENT
SUMMARY:Justin Kaidi
DTSTART;VALUE=DATE-TIME:20200925T133000Z
DTEND;VALUE=DATE-TIME:20200925T143000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/19
DESCRIPTION:Title: Exotic Branes from del Pezzo Surfaces [UNUSUAL TIME]\nb
y Justin Kaidi as part of Exceptional geometry seminar series\n\nInteracti
ve livestream: https://sites.google.com/view/egseminars/\n\nAbstract\nWe r
evisit a correspondence between toroidal compactifications of M-theory and
del Pezzo surfaces\, in which rational curves on the del Pezzo are relate
d to 1/2-BPS branes of the corresponding compactification. We argue that c
urves of higher genus correspond to non-geometric backgrounds of the M-the
ory compactifications\, which are related to exotic branes. In particular\
, the number of “special directions” of the exotic brane is equal to t
he genus of the corresponding curve. In addition to predicting three new n
on-geometric backgrounds\, we discuss a relation between addition of curve
s in the del Pezzo and the brane polarization effect.\n
URL:https://sites.google.com/view/egseminars/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Falk Hassler
DTSTART;VALUE=DATE-TIME:20201002T123000Z
DTEND;VALUE=DATE-TIME:20201002T133000Z
DTSTAMP;VALUE=DATE-TIME:20200921T061039Z
UID:EGSS/20
DESCRIPTION:Title: [tba]\nby Falk Hassler as part of Exceptional geometry
seminar series\n\nInteractive livestream: https://sites.google.com/view/eg
seminars/\nAbstract: TBA\n
URL:https://sites.google.com/view/egseminars/
END:VEVENT
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