BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Yu Pan (MIT)
DTSTART:20200414T160000Z
DTEND:20200414T162500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/1
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 1/">Augmentations and exact Lagrangian surfaces</a>\nby Yu Pan (MIT) as pa
 rt of Trends in low-dimensional topology\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nick Salter (Columbia)
DTSTART:20200414T163000Z
DTEND:20200414T165500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/2
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 2/">Framed mapping class groups\, or the topology of families of flat surf
 aces</a>\nby Nick Salter (Columbia) as part of Trends in low-dimensional t
 opology\n\n\nAbstract\nAbstract: Families of surfaces are everywhere in ma
 thematics\, not just in topology\, but in algebraic geometry\, complex ana
 lysis\, dynamics\, and even number theory. The topology of a family of sur
 faces is governed by a “monodromy representation” that is valued in th
 e mapping class group. I’m interested in (a) developing tools within the
  mapping class group to better understand monodromy and (b) applying these
  tools to problems involving families of surfaces\, inside and out of topo
 logy proper. The thrust of my work over the past few years has been to und
 erstand the monodromy of families of surfaces endowed with certain tangent
 ial structures (e.g. a framing\, a holomorphic 1-form with prescribed zero
 es\, an “r-spin structure”\, etc.) and to apply this to study the topo
 logy of the spaces supporting such families (strata of abelian differentia
 ls\, linear systems in certain algebraic surfaces\, versal deformation spa
 ces of plane curve singularities). This represents joint work with Aaron C
 alderon and Pablo Portilla Cuadrado.\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Irving Dai (MIT)
DTSTART:20200421T160000Z
DTEND:20200421T162500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 3/">Cobordism questions and Heegaard Floer homology</a>\nby Irving Dai (MI
 T) as part of Trends in low-dimensional topology\n\n\nAbstract\nSince its 
 inception\, Floer theory has provided a powerful tool for studying 3- and 
 4-manifolds. Motivated by connections with smooth 4-manifold topology\, we
  give a brief survey of some questions and results regarding the homology 
 cobordism group and discuss some recent applications to the theory of cork
 s. We give a brief overview of how Heegaard Floer homology can be used to 
 approach these topics.\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Allison Miller (Rice)
DTSTART:20200421T163000Z
DTEND:20200421T165500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/4
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 4/">Satellite Operators on Knot Concordance</a>\nby Allison Miller (Rice) 
 as part of Trends in low-dimensional topology\n\n\nAbstract\nWe'll start b
 y talking a little about why 4-manifold topology is interesting and unusua
 l\, and why knot theory offers powerful tools to help us better understand
  it. Next\, I'll sketch the very basics of knot concordance\, focusing on 
 geometrically nice operators coming from the classical satellite construct
 ion. I'll go on to state some results and open questions in this area\, an
 d then close by discussing recent work (joint with P. Feller and J. Pinzon
 -Caicedo) on how various 4-dimensional measures of knot complexity change 
 under satelliting.\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Maggie Miller (Princeton)
DTSTART:20200428T160000Z
DTEND:20200428T162500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 5/">Codimension-2 knots in 4-manifolds</a>\nby Maggie Miller (Princeton) a
 s part of Trends in low-dimensional topology\n\n\nAbstract\nJust as classi
 cal knots (circles in 3-manifolds) are useful in the study of 3-dimensiona
 l topology\, understanding knotted surfaces is useful in the study of 4-di
 mensional topology. Any 4-manifold arises from sums of basic 4-manifolds v
 ia surgery on tori (Iwase)\; certain surgeries on 2-spheres and tori can p
 roduce exotic 4-manifolds\, and the complexity of an h-cobordism of 4-mani
 folds can be described by counting intersections of 2-spheres (Morgan--Sza
 bo). However\, many theorems about classical knots fail or remain unknown 
 in dimension four.\n\nI will discuss some of these interesting phenomena a
 nd big open questions about surfaces in dimension-4\, and describe some of
  my previous/current work in this area (especially joint work with Mark Hu
 ghes and Seungwon Kim proving an analogue of the Reidemeister theorem for 
 surfaces in arbitrary 4-manifolds).\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marc Kegel (Humboldt)
DTSTART:20200428T163000Z
DTEND:20200428T165500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 6/">Contact surgery numbers</a>\nby Marc Kegel (Humboldt) as part of Trend
 s in low-dimensional topology\n\n\nAbstract\nThe surgery number of a 3-man
 ifold M is the minimal number of components in a surgery description of M.
  Computing surgery numbers is in general a difficult task and is only done
  in a few cases.\n\nIn this talk\, I want to report on the same question f
 or contact manifolds. In particular\, we will study a method to compute co
 ntact surgery numbers for contact structures on some Brieskorn spheres. Th
 is talk is based on joint work with Sinem Onaran.\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kyle Hayden (Columbia)
DTSTART:20200505T160000Z
DTEND:20200505T162500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/7
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 7/">A softer side of complex curves</a>\nby Kyle Hayden (Columbia) as part
  of Trends in low-dimensional topology\n\n\nAbstract\nThere is a rich\, sy
 mbiotic relationship between knot theory and the study of complex curves\,
  spanning from Wirtinger's work on knot groups and algebraic curves in the
  1890's\, to Gong's recent calculations of the Kronheimer-Mrowka concordan
 ce invariant. I'll offer a topological perspective on complex curves using
  the important class of "quasipositive braids"\, which naturally arise as 
 cross-sections of complex curves. Then I’ll describe recent work that us
 es this softer perspective to construct pairs of holomorphic disks in the 
 4-ball that are “smoothly exotic”\, i.e. isotopic through ambient home
 omorphisms but not through diffeomorphisms. I'll close with some open ques
 tions about knots and complex curves.\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alexander Rasmussen (Yale)
DTSTART:20200512T160000Z
DTEND:20200512T162500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/8
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 8/">Analogs of the curve graph for infinite type surfaces</a>\nby Alexande
 r Rasmussen (Yale) as part of Trends in low-dimensional topology\n\nAbstra
 ct: TBA\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Oguz Savk (Bogazici)
DTSTART:20200519T160000Z
DTEND:20200519T162500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/9
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 9/">Brieskorn spheres and homology cobordism</a>\nby Oguz Savk (Bogazici) 
 as part of Trends in low-dimensional topology\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dror Bar-Natan (Toronto)
DTSTART:20200505T163000Z
DTEND:20200505T165500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/10
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 10/">Over then under tangles</a>\nby Dror Bar-Natan (Toronto) as part of T
 rends in low-dimensional topology\n\n\nAbstract\nBrilliant wrong ideas sho
 uld not be buried and forgotten. Instead\, they should be mined for the go
 ld that lies underneath the layer of wrong. In this paper we explain how "
 over then under tangles" lead to an easy classification of knots\, and und
 er the surface\, also to some valid mathematics: an easy classification of
  braids and virtual braids\, an understanding of the Drinfel'd double proc
 edure in quantum algebra\, and more.\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Will Rushworth (McMaster)
DTSTART:20200512T163000Z
DTEND:20200512T165500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/11
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 11/">Ascent concordance</a>\nby Will Rushworth (McMaster) as part of Trend
 s in low-dimensional topology\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Puttipong Pongtanapaisan (Iowa)
DTSTART:20200519T163000Z
DTEND:20200519T165500Z
DTSTAMP:20260422T225845Z
UID:TrendsInLDT/12
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/TrendsInLDT/
 12/">Meridional rank and bridge number of knotted surfaces</a>\nby Puttipo
 ng Pongtanapaisan (Iowa) as part of Trends in low-dimensional topology\n\n
 Abstract: TBA\n
LOCATION:https://researchseminars.org/talk/TrendsInLDT/12/
END:VEVENT
END:VCALENDAR