BEGIN:VCALENDAR
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CALSCALE:GREGORIAN
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BEGIN:VEVENT
SUMMARY:Yu Pan (MIT)
DTSTART:20200414T160000Z
DTEND:20200414T162500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/1
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/1/">Augmentations and exact Lagrangian surfaces</a>\nby Yu Pan (MIT
 ) as part of Trends in low-dimensional topology\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nick Salter (Columbia)
DTSTART:20200414T163000Z
DTEND:20200414T165500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/2
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/2/">Framed mapping class groups\, or the topology of families of fl
 at surfaces</a>\nby Nick Salter (Columbia) as part of Trends in low-dimens
 ional topology\n\n\nAbstract\nAbstract: Families of surfaces are everywher
 e in mathematics\, not just in topology\, but in algebraic geometry\, comp
 lex analysis\, dynamics\, and even number theory. The topology of a family
  of surfaces is governed by a “monodromy representation” that is value
 d in the mapping class group. I’m interested in (a) developing tools wit
 hin the mapping class group to better understand monodromy and (b) applyin
 g these tools to problems involving families of surfaces\, inside and out 
 of topology proper. The thrust of my work over the past few years has been
  to understand the monodromy of families of surfaces endowed with certain 
 tangential structures (e.g. a framing\, a holomorphic 1-form with prescrib
 ed zeroes\, an “r-spin structure”\, etc.) and to apply this to study t
 he topology of the spaces supporting such families (strata of abelian diff
 erentials\, linear systems in certain algebraic surfaces\, versal deformat
 ion spaces of plane curve singularities). This represents joint work with 
 Aaron Calderon and Pablo Portilla Cuadrado.\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Irving Dai (MIT)
DTSTART:20200421T160000Z
DTEND:20200421T162500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/3
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/3/">Cobordism questions and Heegaard Floer homology</a>\nby Irving 
 Dai (MIT) as part of Trends in low-dimensional topology\n\n\nAbstract\nSin
 ce its inception\, Floer theory has provided a powerful tool for studying 
 3- and 4-manifolds. Motivated by connections with smooth 4-manifold topolo
 gy\, we give a brief survey of some questions and results regarding the ho
 mology cobordism group and discuss some recent applications to the theory 
 of corks. We give a brief overview of how Heegaard Floer homology can be u
 sed to approach these topics.\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Allison Miller (Rice)
DTSTART:20200421T163000Z
DTEND:20200421T165500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/4
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/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 by talking a little about why 4-manifold topology is interesting and
  unusual\, and why knot theory offers powerful tools to help us better und
 erstand it. Next\, I'll sketch the very basics of knot concordance\, focus
 ing on geometrically nice operators coming from the classical satellite co
 nstruction. I'll go on to state some results and open questions in this ar
 ea\, and 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://stable.researchseminars.org/talk/TrendsInLDT/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Maggie Miller (Princeton)
DTSTART:20200428T160000Z
DTEND:20200428T162500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/5
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/5/">Codimension-2 knots in 4-manifolds</a>\nby Maggie Miller (Princ
 eton) as part of Trends in low-dimensional topology\n\n\nAbstract\nJust as
  classical knots (circles in 3-manifolds) are useful in the study of 3-dim
 ensional topology\, understanding knotted surfaces is useful in the study 
 of 4-dimensional topology. Any 4-manifold arises from sums of basic 4-mani
 folds via surgery on tori (Iwase)\; certain surgeries on 2-spheres and tor
 i can produce exotic 4-manifolds\, and the complexity of an h-cobordism of
  4-manifolds can be described by counting intersections of 2-spheres (Morg
 an--Szabo). However\, many theorems about classical knots fail or remain u
 nknown in dimension four.\n\nI will discuss some of these interesting phen
 omena and big open questions about surfaces in dimension-4\, and describe 
 some of my previous/current work in this area (especially joint work with 
 Mark Hughes and Seungwon Kim proving an analogue of the Reidemeister theor
 em for surfaces in arbitrary 4-manifolds).\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marc Kegel (Humboldt)
DTSTART:20200428T163000Z
DTEND:20200428T165500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/6
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/6/">Contact surgery numbers</a>\nby Marc Kegel (Humboldt) as part o
 f Trends in low-dimensional topology\n\n\nAbstract\nThe surgery number of 
 a 3-manifold M is the minimal number of components in a surgery descriptio
 n of M. Computing surgery numbers is in general a difficult task and is on
 ly done in a few cases.\n\nIn this talk\, I want to report on the same que
 stion for contact manifolds. In particular\, we will study a method to com
 pute contact surgery numbers for contact structures on some Brieskorn sphe
 res. This talk is based on joint work with Sinem Onaran.\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kyle Hayden (Columbia)
DTSTART:20200505T160000Z
DTEND:20200505T162500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/7
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/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 ri
 ch\, symbiotic relationship between knot theory and the study of complex c
 urves\, spanning from Wirtinger's work on knot groups and algebraic curves
  in the 1890's\, to Gong's recent calculations of the Kronheimer-Mrowka co
 ncordance invariant. I'll offer a topological perspective on complex curve
 s using the important class of "quasipositive braids"\, which naturally ar
 ise as cross-sections of complex curves. Then I’ll describe recent work 
 that uses this softer perspective to construct pairs of holomorphic disks 
 in the 4-ball that are “smoothly exotic”\, i.e. isotopic through ambie
 nt homeomorphisms but not through diffeomorphisms. I'll close with some op
 en questions about knots and complex curves.\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alexander Rasmussen (Yale)
DTSTART:20200512T160000Z
DTEND:20200512T162500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/8
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/8/">Analogs of the curve graph for infinite type surfaces</a>\nby A
 lexander Rasmussen (Yale) as part of Trends in low-dimensional topology\n\
 nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Oguz Savk (Bogazici)
DTSTART:20200519T160000Z
DTEND:20200519T162500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/9
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/9/">Brieskorn spheres and homology cobordism</a>\nby Oguz Savk (Bog
 azici) as part of Trends in low-dimensional topology\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Dror Bar-Natan (Toronto)
DTSTART:20200505T163000Z
DTEND:20200505T165500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/10
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/10/">Over then under tangles</a>\nby Dror Bar-Natan (Toronto) as pa
 rt of Trends in low-dimensional topology\n\n\nAbstract\nBrilliant wrong id
 eas should not be buried and forgotten. Instead\, they should be mined for
  the gold that lies underneath the layer of wrong. In this paper we explai
 n how "over then under tangles" lead to an easy classification of knots\, 
 and under the surface\, also to some valid mathematics: an easy classifica
 tion of braids and virtual braids\, an understanding of the Drinfel'd doub
 le procedure in quantum algebra\, and more.\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Will Rushworth (McMaster)
DTSTART:20200512T163000Z
DTEND:20200512T165500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/11
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/11/">Ascent concordance</a>\nby Will Rushworth (McMaster) as part o
 f Trends in low-dimensional topology\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Puttipong Pongtanapaisan (Iowa)
DTSTART:20200519T163000Z
DTEND:20200519T165500Z
DTSTAMP:20260404T110825Z
UID:TrendsInLDT/12
DESCRIPTION:Title: <a href="https://stable.researchseminars.org/talk/Trend
 sInLDT/12/">Meridional rank and bridge number of knotted surfaces</a>\nby 
 Puttipong Pongtanapaisan (Iowa) as part of Trends in low-dimensional topol
 ogy\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/TrendsInLDT/12/
END:VEVENT
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