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BEGIN:VEVENT
SUMMARY:Wojciech Politarczyk (University of Warsaw)
DTSTART;VALUE=DATE-TIME:20200421T140000Z
DTEND;VALUE=DATE-TIME:20200421T150000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/1
DESCRIPTION:Title: Khovanov homotopy type\nby Wojciech Politarczyk (University of Wars
aw) as part of Knot theory seminar in Warsaw\n\n\nAbstract\nThe main purpo
se of the talk is to give an introduction to the stable Khovanov homotopy
type.\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Piotr Suwara (MIT)
DTSTART;VALUE=DATE-TIME:20200428T140000Z
DTEND;VALUE=DATE-TIME:20200428T150000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/2
DESCRIPTION:Title: Floer homology via semi-infinite dimensional cycles\nby Piotr Suwar
a (MIT) as part of Knot theory seminar in Warsaw\n\n\nAbstract\nFloer's id
ea of constructing a Morse-Smale-Witten chain complex to compute the "midd
le-dimensional homology" of infinite-dimensional spaces led to the emergen
ce of groundbreaking invariants of knots\, low-dimensional manifolds and s
ymplectic manifolds\, collectively known under the name of Floer homology.
I will describe a construction of a homological invariant of infinite-dim
ensional spaces with a functional facilitating what Atiyah called "semi-in
finite dimensional cycles"\, following the work of Lipyanskiy and based on
earlier work of Mrowka and Ozsváth. The construction reduces the analyti
cal difficulties needed to define Floer homology and hopefully will provid
e a convenient framework for constructing equivariant Floer homologies.\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Marithania Silvero (University of the Basque Country)
DTSTART;VALUE=DATE-TIME:20200505T150000Z
DTEND;VALUE=DATE-TIME:20200505T160000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/3
DESCRIPTION:Title: Geometrizing Khovanov homology\nby Marithania Silvero (University o
f the Basque Country) as part of Knot theory seminar in Warsaw\n\nAbstract
: TBA\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anthony Conway (MPIM Bonn)
DTSTART;VALUE=DATE-TIME:20200512T150000Z
DTEND;VALUE=DATE-TIME:20200512T160000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/4
DESCRIPTION:Title: Characterisations of homotopy ribbon discs\nby Anthony Conway (MPIM
Bonn) as part of Knot theory seminar in Warsaw\n\n\nAbstract\nAfter revie
wing some notions related to knot concordance\, we explore the following q
uestion: how many slice discs does a slice knot admit?\n\nThis is joint wo
rk with Mark Powell.\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Matthew Stoffregen (MIT)
DTSTART;VALUE=DATE-TIME:20200519T150000Z
DTEND;VALUE=DATE-TIME:20200519T160000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/5
DESCRIPTION:Title: Involutive Floer homology of integer surgeries\nby Matthew Stoffreg
en (MIT) as part of Knot theory seminar in Warsaw\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Józef Przytycki (The George Washington University)
DTSTART;VALUE=DATE-TIME:20200602T150000Z
DTEND;VALUE=DATE-TIME:20200602T160000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/6
DESCRIPTION:Title: The second Yang-Baxter homology for the Homflypt polynomial\nby Jó
zef Przytycki (The George Washington University) as part of Knot theory se
minar in Warsaw\n\n\nAbstract\nVaughan Jones constructed Yang-Baxter opera
tors yielding the Jones and\nHomflypt polynomials.\nWe adjust these Yang-B
axter operators constructed by Jones so the\nhomology theory given by Vict
oria Lebed and the speaker could be used.\nThen we compute the second homo
logy for this family of Yang-Baxter\noperators. It has the potential to yi
eld a 2-cocycle invariant for links.\nSee arXiv:2004.07413 [math.GT]\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Uwe Kaiser (Boise State University)
DTSTART;VALUE=DATE-TIME:20200609T150000Z
DTEND;VALUE=DATE-TIME:20200609T160000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/7
DESCRIPTION:Title: The talk is cancelled\nby Uwe Kaiser (Boise State University) as pa
rt of Knot theory seminar in Warsaw\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andras Stipsicz (Alfred Renyi Institute of Mathematics)
DTSTART;VALUE=DATE-TIME:20200610T140000Z
DTEND;VALUE=DATE-TIME:20200610T150000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/8
DESCRIPTION:Title: Connected Floer homology of covering involutions\nby Andras Stipsic
z (Alfred Renyi Institute of Mathematics) as part of Knot theory seminar i
n Warsaw\n\n\nAbstract\nBranched covers (and in particular double branched
covers)\ncan be conveniently used in studying concordance questions of kn
ots and\nthe standard three-sphere. Motivated by involutive Floer homology
(and\nmore generally\, by connected Floer homology) we introduce an invar
iant\nof knots using the double branched cover (and its involution) in an\
nessential way\, and show some new independence results in the\nconcordanc
e group.\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Maciej Markiewicz (University of Warsaw)
DTSTART;VALUE=DATE-TIME:20200526T150000Z
DTEND;VALUE=DATE-TIME:20200526T160000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/9
DESCRIPTION:Title: Detecting knot periodicity via cabling operation\nby Maciej Markiew
icz (University of Warsaw) as part of Knot theory seminar in Warsaw\n\n\nA
bstract\nThe aim of this talk is to present the results based on speaker's
master thesis. We show how to adapt a proof of a criterion for knot perio
dicty shown by Traczyk and Przytycki to the case of knot cables to obtain
a stronger theorem. We also discuss its applications and limitations.\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Peter Feller (ETH Zurich)
DTSTART;VALUE=DATE-TIME:20200616T150000Z
DTEND;VALUE=DATE-TIME:20200616T160000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/10
DESCRIPTION:Title: Non-orientable slice surfaces and inscribed rectangles.\nby Peter
Feller (ETH Zurich) as part of Knot theory seminar in Warsaw\n\n\nAbstract
\nDoes every Jordan curve in the Euclidian plane contain 4 points that for
m\nthe corners of a square? What about the corners of a rectangle with a\n
prescribed aspect ration?\nStarting from this old metric problem posed by
Toeplitz over a hundred\nyears ago\, we discuss problems in knot concordan
ce theory.\n\nFollowing a strategy of Hugelmeyer\, we relate Toeplitz's qu
estion to the\nfollowing variant of a classical knot concordance question:
\nFor a given knot \\(K\\) in the 3-sphere \\(S^3\\) (or \\(S^2 \\times S^
1\\))\, what is the smallest\ninteger among the first Betti numbers of non
-orientable surface in the\n4-ball \\(B^4\\) (or \\(B^3 \\times S^1\\)) wi
th boundary \\(K\\)?\nWe discuss this in both the smooth and topological c
ategory. Along the way\,\nwe note that a celebrated result by Batson on th
e smooth non-orientable\n4-genus of torus knots does not hold in the topol
ogical category.\n\nBased on joint work with Marco Golla\; see\nhttps://ar
xiv.org/pdf/2003.01590.pdf\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Antonio Alfieri
DTSTART;VALUE=DATE-TIME:20210507T180000Z
DTEND;VALUE=DATE-TIME:20210507T190000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/11
DESCRIPTION:Title: Symmetric knots and Floer homologies.\nby Antonio Alfieri as part
of Knot theory seminar in Warsaw\n\n\nAbstract\nI will discuss some open p
roblems and survey some classical\nmaterial regarding symmetric knots and
group actions on 3- and\n4-manifolds. In the second part of the talk\, I w
ill discuss how\ntechniques from Floer theory can be employed to approach
some of these\nproblems.\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Guillem Cazassus
DTSTART;VALUE=DATE-TIME:20210514T101500Z
DTEND;VALUE=DATE-TIME:20210514T111500Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/12
DESCRIPTION:Title: Hopf algebras\, equivariant Lagrangian Floer homology\, and cornered i
nstanton theory\nby Guillem Cazassus as part of Knot theory seminar in
Warsaw\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Tamasz Laszlo
DTSTART;VALUE=DATE-TIME:20210521T101500Z
DTEND;VALUE=DATE-TIME:20210521T111500Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/13
DESCRIPTION:Title: Delta invariant of curves and beyond\nby Tamasz Laszlo as part of
Knot theory seminar in Warsaw\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Cristina Palmer-Anghel
DTSTART;VALUE=DATE-TIME:20210528T101500Z
DTEND;VALUE=DATE-TIME:20210528T111500Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/14
DESCRIPTION:Title: The Witten-Reshetikhin-Turaev invariants for 3-manifolds as state sums
of Lagrangian intersections\nby Cristina Palmer-Anghel as part of Kno
t theory seminar in Warsaw\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Boyu Zhang
DTSTART;VALUE=DATE-TIME:20210611T130000Z
DTEND;VALUE=DATE-TIME:20210611T140000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/16
DESCRIPTION:Title: Several detection results for Khovanov homology on links\nby Boyu
Zhang as part of Knot theory seminar in Warsaw\n\n\nAbstract\nKhovanov hom
ology is a combinatorially defined invariant for knots and links. In this
talk\, I will present several new detection results for Khovanov homology
on links. In particular\, I will present a classification result for all n
-component links whose Khovanov homology has the minimum rank 2^n. The cla
ssification gives a positive answer to a conjecture of Batson and Seed\, a
nd generalizes the unlink detection theorem of Hedden-Ni and Batson-Seed.
The proof is based on a new excision formula for singular instanton Floer
homology. This is joint work with Yi Xie.\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Melissa Zhang
DTSTART;VALUE=DATE-TIME:20210618T140000Z
DTEND;VALUE=DATE-TIME:20210618T150000Z
DTSTAMP;VALUE=DATE-TIME:20210613T002558Z
UID:KnotWarsaw/17
DESCRIPTION:by Melissa Zhang as part of Knot theory seminar in Warsaw\n\nI
nteractive livestream: https://us02web.zoom.us/j/84623028036\nPassword hin
t: See comments section.\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/KnotWarsaw/17/
URL:https://us02web.zoom.us/j/84623028036
END:VEVENT
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