BEGIN:VCALENDAR
VERSION:2.0
PRODID:researchseminars.org
CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Anibal Medina (EPFL)
DTSTART:20200722T153000Z
DTEND:20200722T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/1
DESCRIPTION:Title: A finitely presented E-infinity prop\nby Anibal Medina (
EPFL) as part of Purdue Topology Seminar\n\n\nAbstract\nThe Comm operad in
chain complexes admits a presentation in terms of finitely many generator
s and relations\, but no such presentation can be given for a sigma-free r
esolution of it. By passing to the more general setting of props\, we are
able to describe finitely presented E-infinity props in the categories of
chain complexes and of cellular spaces. We relate the operads associated w
ith these to the E-infinity operad models introduced by McClure-Smith\, Be
rger-Fresse and Kaufmann\, and describe novel actions on simplicial and cu
bical sets complementing these authors' work.\n\nPlease email purduetopolo
gyseminar@gmail.com before Wednesday with a request to obtain the link for
the Zoom meeting.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andrea Bianchi (University of Bonn)
DTSTART:20200909T153000Z
DTEND:20200909T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/2
DESCRIPTION:Title: Hurwitz spaces and Moduli spaces of Riemann surfaces\nby
Andrea Bianchi (University of Bonn) as part of Purdue Topology Seminar\n\
n\nAbstract\nSullivan associates to the dg commutative algebra of Chevalle
y-Eilenberg cochains C*(g) on a nilpotent (or pro-nilpotent) differential
graded Lie algebra g a Kan complex \, using the differential graded
commutative algebras Ω(Δn) of polynomial-coefficient differential forms
on the simplex. If g is a Lie algebra\, with Lie group G\, this Kan compl
ex is not isomorphic to BG. In 2004\, using Dupont's explicit simplicial h
omotopy for the de Rham theorem\, I showed that has a natural simp
licial subset γ(g) with the following properties:\n\n 1) γ(g) is a Kan
complex (in fact\, the functor takes fibrations to fibrations\, and trivia
l fibrations to trivial fibrations)\;\n 2) if g vanishes in degree -k and
below\, γ(g) is a k-groupoid in the sense of Duskin\;\n 3) the inclusio
n of γ(g) in is a homotopy equivalence\;\n 4) if g is a nilpoten
t Lie algebra\, γ(g) is naturally isomorphic to BG\;\n 5) if g vanishes
in negative degree\, γ(g) is the nerve of the Deligne groupoid of g.\n \n
In fact\, γ(g) is really a derived stack\, but I will focus on the underl
ying simplicial set\, since it exhibits all of the essential ideas of the
construction.\n\nIn this talk\, I give a new approach to γ(g)\, using dif
ferential forms on the cube. The explicit homotopy for the de Rham theorem
is much easier to construct for cubes: the main new result is that this h
omotopy is not just cubical in the sense of Serre\, but also in the sense
of Brown and Higgins. This is an important refinement\, since the analogue
of Moore's theorem that a simplicial group is a Kan complex need the enri
chment of Brown and Higgins (what they call connections) in order to hold\
, by the work of Tonks.\n\nReplacing the cube by the cubical complex Qn\,
associated with straightening/unstraightening over a point\, we obtain a n
ew construction of a functor from L-infinity algebras to Kan complexes wit
h the same properties as γ(g).\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20200916T153000Z
DTEND:20200916T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/3
DESCRIPTION:by TBA as part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pavel Safronov (University of Edinburgh)
DTSTART:20200923T153000Z
DTEND:20200923T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/4
DESCRIPTION:Title: Coproduct in string topology\, Euler structures and topologi
cal field theories.\nby Pavel Safronov (University of Edinburgh) as pa
rt of Purdue Topology Seminar\n\n\nAbstract\nChas and Sullivan have introd
uced interesting algebraic operations on the homology of the free loop spa
ce of a manifold which go under the name of the string topology operations
. Cohen—Gaudin gave a TFT interpretation of the string product. Moreover
\, Cohen—Klein—Sullivan have shown that the string product is homotopy
-invariant. In this talk I will explain a TFT interpretation of the string
coproduct by disassembling it into elementary pieces. In particular\, I w
ill explain a conjecture that the string coproduct is not homotopy-invaria
nt and changes by the Whitehead torsion. This is a report on work in progr
ess joint with Florian Naef.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Julian Holstein (University of Hamburg)
DTSTART:20200930T153000Z
DTEND:20200930T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/5
DESCRIPTION:Title: Categorical Koszul Duality\nby Julian Holstein (Universi
ty of Hamburg) as part of Purdue Topology Seminar\n\n\nAbstract\nThe algeb
raic analogue of the loop space construction of topological spaces is Adam
s’ cobar construction.\nTogether with the bar construction it induces a
Koszul duality between algebras and coalgebras\,\nproviding an equivalence
of suitable homotopy theories of augmented differential graded algebras a
nd differential graded conilpotent coalgebras.\nInteresting things happen
as one generalises this result\, in particular dropping the augmentation o
n the dg algebra side corresponds to introducing a curvature term on the c
oalgebra side.\nI will talk about joint work with Andrey Lazarev\, in whic
h we generalise this to a categorical Koszul duality and find a category o
f coalgebras Quillen equivalent to differential graded categories. I will
show that this construction is closely related to the coherent nerve const
ruction from simplicial categories to quasicategories.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Peter Smillie (Caltech)
DTSTART:20201007T153000Z
DTEND:20201007T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/6
DESCRIPTION:Title: The borders of outer space\nby Peter Smillie (Caltech) a
s part of Purdue Topology Seminar\n\n\nAbstract\nThe group Out(F_n) acts p
roperly on a contractible space known as outer space. Motivated by the Bor
el-Serre bordification of symmetric spaces\, Bestvina and Feighn gave a bo
rdification of outer space and used it to prove that Out(F_n) is a virtual
duality group. I will define outer space\, and show how to realize the Be
stvina-Feighn bordification as a deformation retract instead of an enlarge
ment. This leads to a new proof that Out(F_n) is a virtual duality group a
nd gives an explicit polyhedral structure on the boundary of outer space.\
n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Martin Palmer (Mathematical Institute of the Romanian Academy)
DTSTART:20201021T153000Z
DTEND:20201021T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/7
DESCRIPTION:by Martin Palmer (Mathematical Institute of the Romanian Acade
my) as part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/7/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Quoc P Ho (Institute of Science and Technology of Austria)
DTSTART:20201028T153000Z
DTEND:20201028T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/8
DESCRIPTION:by Quoc P Ho (Institute of Science and Technology of Austria)
as part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ben Knudsen (Northeastern University)
DTSTART:20201104T163000Z
DTEND:20201104T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/9
DESCRIPTION:by Ben Knudsen (Northeastern University) as part of Purdue Top
ology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Carlos De La Cruz Mengual (Weizmann Institute of Science)
DTSTART:20201111T163000Z
DTEND:20201111T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/10
DESCRIPTION:by Carlos De La Cruz Mengual (Weizmann Institute of Science) a
s part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Rita Jiménez Rolland (UNAM Oaxaca)
DTSTART:20201118T163000Z
DTEND:20201118T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/11
DESCRIPTION:Title: Powers of the Euler class for pure mapping class groups
\nby Rita Jiménez Rolland (UNAM Oaxaca) as part of Purdue Topology Semina
r\n\n\nAbstract\nThe mapping class group of an orientable closed surface w
ith one marked point can be identified\, by the Nielsen action\, with a su
bgroup of the group of orientation-preserving homeomorphisms of the circle
. This inclusion pulls back the “discrete universal Euler class” produ
cing a non-zero class in the second integral cohomology of the mapping cla
ss group. In this talk\, we describe some partial results\, in ongoing wor
k with Solomon Jekel\, on the vanishing and non-vanishing behaviour of the
powers of this class.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ben Williams (University of British Columbia)
DTSTART:20201202T163000Z
DTEND:20201202T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/12
DESCRIPTION:by Ben Williams (University of British Columbia) as part of Pu
rdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Chris Kapulkin (University of Western Ontario)
DTSTART:20201014T153000Z
DTEND:20201014T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/13
DESCRIPTION:Title: Cubical models of (∞\,1)-categories\nby Chris Kapulki
n (University of Western Ontario) as part of Purdue Topology Seminar\n\n\n
Abstract\nI will report on the joint work with B. Doherty\, Z. Lindsey\, a
nd C. Sattler\, establishing a family of new models of (∞\,1)-categories
in different categories of (marked) cubical sets.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ryan Budney (University of Victoria)
DTSTART:20201209T163000Z
DTEND:20201209T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/14
DESCRIPTION:Title: Isotopy in dimension 4\nby Ryan Budney (University of V
ictoria) as part of Purdue Topology Seminar\n\n\nAbstract\nI will discuss
an (n-3)-parameter family of diffeomorphisms of S^1 x D^n coming from the
high-dimensional analogue of a "crossing change". We sketch a geometric
description of how these diffeomorphisms act on the "reducing disc" {1}xD^
n\, and why it is non-trivial. The techniques we use are relatively simple
transversality arguments that could be thought of as encoding the rationa
l homotopy of the Taylor tower for various embedding spaces. The discussi
on will end with some applications: "almost a counterexample" to the smoot
h 4-dimensional Schoenflies problem in dimension 4\, and some basic inform
ation about the component of the trivial knot in the space of embeddings o
f S^2 into S^4.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ozgur Bayindir (Paris 13)
DTSTART:20201216T163000Z
DTEND:20201216T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/15
DESCRIPTION:Title: Algebraic K-theory of THH(Fp)\nby Ozgur Bayindir (Paris
13) as part of Purdue Topology Seminar\n\n\nAbstract\nIn this work\, we s
tudy THH(Fp) from various perspectives. We\nstart with a new identificatio
n of THH(Fp) as an E_2-algebra.\nFollowing this\, we compute the K-theory
of THH(Fp).\n\nThe first part of my talk is going to consist of an introdu
ction to\nring spectra\, algebraic $K$-theory and the Nikolaus Scholze app
roach\nto trace methods. In the second part\, I will introduce our results
and\nthe tools we\ndevelop to study the topological Hochschild homology o
f graded ring\nspectra.\n\nThis is a joint work with Tasos Moulinos.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Maru Sarazola (Cornell University)
DTSTART:20210113T163000Z
DTEND:20210113T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/16
DESCRIPTION:Title: Cotorsion pairs and a K-theory localization theorem\nby
Maru Sarazola (Cornell University) as part of Purdue Topology Seminar\n\n
\nAbstract\nCotorsion pairs were introduced in the ’70s as a generalizat
ion of projective and injective objects in an abelian category\, and were
mainly used in the context of representation theory. In 2002\, Hovey showe
d a remarkable correspondence between compatible cotorsion pairs on an abe
lian category A and abelian model structures one can define on A. These in
clude\, for example\, the projective and injective model structures on cha
in complexes.\n\nIn this talk\, we turn our attention to Waldhausen catego
ries\, and explain how cotorsion pairs can be used to construct Waldhausen
structures on an exact category\, with the usual class of admissible mono
morphisms as cofibrations\, and some freedom to choose the class of desire
d acyclic objects. This allows us to prove a new version of Quillen’s lo
calization theorem\, relating the K-theory of exact categories A ⊆ B to
that of a cofiber\, constructed through a cotorsion pair.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jan Steinebrunner (Oxford University)
DTSTART:20210120T163000Z
DTEND:20210120T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/17
DESCRIPTION:Title: The one-dimensional bordism category\nby Jan Steinebrun
ner (Oxford University) as part of Purdue Topology Seminar\n\n\nAbstract\n
The topologically enriched bordism category Bord_d has as objects closed o
riented (d-1)-manifolds and as morphism spaces the moduli spaces of orient
ed d-bordisms. The classifying space B(Bord_d) was computed by Galatius-Ma
dsen-Tillmann-Weiss\, and has been used to great success in the study of m
oduli spaces.\n\nIn this talk\, after recalling Bord_d\, I will focus on i
ts much simpler predecessor: the homotopy category h(Bord_d) where any two
diffeomorphic bordisms are identified. Surprisingly little is known about
the homotopy type of h(Bord_d). I will explain how to compute the classif
ying space of h(Bord_1) in terms of CP^\\infty_{-1} = MTSO_2. The proof ma
kes use of a new 'reduced' bordism category Bord_1^{red} where all circles
are deleted. \n\nAs a result of the computation we will see that B(h Bord
_1) carries a lot of interesting information. To better understand where t
his is coming from\, I will also show how to construct cocycles for an inf
inite family of non-trivial cohomology classes kappa_i on h(Bord_1). If ti
me permits I will use this to show that a large subcategory of h(Bord_2) i
s highly non-trivial.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Omar Antolín Camarena (UNAM)
DTSTART:20210127T163000Z
DTEND:20210127T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/18
DESCRIPTION:Title: Higher generation by abelian subgroups in Lie groups\nb
y Omar Antolín Camarena (UNAM) as part of Purdue Topology Seminar\n\n\nAb
stract\nThe poset of cosets of Abelian subgroups of a discrete group is si
mply-connected if and only if the group is Abelian. I'll explain this resu
lt of Cihan Okay's and talk about an analogue for compact Lie groups. Alej
andro Adem\, Fred Cohen and Enrique Torres Giese asociated to any topologi
cal group G a space E(2\,G) which plays the role of the abelian subgroup c
oset poset. Simon Gritschacher and Bernardo Villarreal and I proved that a
compact Lie group G is Abelian if and only if πᵢ(E(2\,G))=0 for i=1\,2
\,4.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nicholas Wawrykow (University of Michigan)
DTSTART:20210210T163000Z
DTEND:20210210T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/19
DESCRIPTION:Title: Secondary Representation Stability and the Ordered Configur
ation Space of the Once-Punctured Torus\nby Nicholas Wawrykow (Univers
ity of Michigan) as part of Purdue Topology Seminar\n\n\nAbstract\nIn this
talk we discuss a notion of secondary representation stability introduced
by Miller and Wilson. They proved that there was a stability pattern in t
he homology of the ordered configuration space of noncompact manifolds in
a range beyond the traditional representation stability range of Church\,
Ellenberg\, and Farb. We discuss their result\, and describe an example of
secondary representation stability\, namely the k-th homology of the orde
red configuration space of 2k-2 points on the once-punctured torus\, the f
irst known example where the FIM^+ structure is neither free nor stably ze
ro.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Boris Tsygan (Northwestern University)
DTSTART:20210303T163000Z
DTEND:20210303T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/20
DESCRIPTION:Title: Operations on Hochschild and cyclic complexes\nby Boris
Tsygan (Northwestern University) as part of Purdue Topology Seminar\n\n\n
Abstract\nHochschild and cyclic complexes are invariants of associative al
gebras that have geometric flavour. When the algebra is a commutative alge
bra of functions on a space such as a manifold\, a variety\, etc.\, these
complexes recover geometric objects on the underlying space\, such as De R
ham complex or multi vector fields. \n\nAlgebraic structures on Hochschild
and cyclic complexes\, often generalizing classical structures on geometr
ic objects to noncommutative case but sometimes new\, had been extensively
studied for the last forty years. Their applications include formality th
eorems for deformation quantization\, generalized index theorems\, string
topology and its uses in symplectic topology\, etc. In my talk I will revi
ew current developments in the subject and pose some questions.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/20/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Bruno Kahn (CNRS - IMJ-PRG)
DTSTART:20210915T153000Z
DTEND:20210915T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/21
DESCRIPTION:Title: A rank spectral sequence for algebraic K-theory\nby Bru
no Kahn (CNRS - IMJ-PRG) as part of Purdue Topology Seminar\n\nAbstract: T
BA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ismael Sierra (University of Cambridge)
DTSTART:20210922T153000Z
DTEND:20210922T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/22
DESCRIPTION:by Ismael Sierra (University of Cambridge) as part of Purdue T
opology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Florian Kranhold (University of Bonn)
DTSTART:20210929T153000Z
DTEND:20210929T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/23
DESCRIPTION:by Florian Kranhold (University of Bonn) as part of Purdue Top
ology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andreas Stavrou (University of Cambridge)
DTSTART:20211006T153000Z
DTEND:20211006T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/24
DESCRIPTION:by Andreas Stavrou (University of Cambridge) as part of Purdue
Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kai Cieliebak (Ausburg university)
DTSTART:20211013T153000Z
DTEND:20211013T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/25
DESCRIPTION:Title: Poincare duality and bialgebra structures for loop spaces.<
/a>\nby Kai Cieliebak (Ausburg university) as part of Purdue Topology Semi
nar\n\n\nAbstract\nThis talk is about ongoing joint work with Nancy Hingst
on and Alexandru Oancea.\n\nI will explain how various puzzles in string t
opology get resolved in terms of symplectic geometry: Loop space homology
and cohomology are merged into a larger space\, Rabinowitz Floer homology\
, which is an infinitesimal bialgebra in the sense of Joni-Rota and Aguiar
and satisfies Poincare duality.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/25/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ka Ho Wong (Texas A&M)
DTSTART:20211020T153000Z
DTEND:20211020T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/26
DESCRIPTION:Title: Asymptotics of the relative Reshetikhin-Turaev invariants\nby Ka Ho Wong (Texas A&M) as part of Purdue Topology Seminar\n\n\nAbst
ract\nIn a series of joint works with Tian Yang\, we made a volume conject
ure and an asymptotic expansion conjecture for the relative Reshetikhin-Tu
raev invariants for a closed oriented 3-manifold with a colored framed lin
k inside it. We propose that their asymptotic behavior is related to the v
olume\, the Chern-Simons invariant and the adjoint twisted Reidemeister to
rsion associated with the hyperbolic cone metric on the manifold with sing
ular locus the link and cone angles determined by the coloring.\n\nIn this
talk\, I will first discuss how our volume conjecture can be understood a
s an interpolation between the Kashaev-Murakami-Murakami volume conjecture
of the colored Jones polynomials and the Chen-Yang volume conjecture of t
he Reshetikhin-Turaev invariants. Then I will describe how the adjoint twi
sted Reidemeister torsion shows up in the asymptotic expansion of the inva
riants. Especially\, we find new explicit formulas for the adjoint twisted
Reidemeister torsion for the fundamental shadow link complements and for
the 3-manifold obtained by doing hyperbolic Dehn-filling on those link com
plements. Those formulas cover a very large class of hyperbolic 3-manifold
and appear naturally in the asymptotic expansion of quantum invariants. F
inally\, I will summarize the recent progress of the asymptotic expansion
conjecture of the fundamental shadow link pairs.\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/26/
END:VEVENT
BEGIN:VEVENT
SUMMARY:George Raptis (University of Regensburg)
DTSTART:20211103T153000Z
DTEND:20211103T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/27
DESCRIPTION:by George Raptis (University of Regensburg) as part of Purdue
Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/27/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Behrang Noohi (Queen Mary)
DTSTART:20211117T163000Z
DTEND:20211117T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/28
DESCRIPTION:Title: Categorical calculus and representation theory\nby Behr
ang Noohi (Queen Mary) as part of Purdue Topology Seminar\n\nAbstract: TBA
\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/28/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Xiaolei Wu (University of Bielefeld)
DTSTART:20211201T163000Z
DTEND:20211201T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/29
DESCRIPTION:Title: Homological stability for the ribbon Higman--Thompson group
s\nby Xiaolei Wu (University of Bielefeld) as part of Purdue Topology
Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/29/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Shun Wakatsuki (Shinshu University)
DTSTART:20211110T163000Z
DTEND:20211110T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/30
DESCRIPTION:by Shun Wakatsuki (Shinshu University) as part of Purdue Topol
ogy Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/30/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Daniel Lopez Neumann (Indiana University\, Bloomington)
DTSTART:20211208T163000Z
DTEND:20211208T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/31
DESCRIPTION:by Daniel Lopez Neumann (Indiana University\, Bloomington) as
part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/31/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Georg Frenck (University of Augsburg)
DTSTART:20211027T153000Z
DTEND:20211027T163000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/32
DESCRIPTION:Title: Characteristic classes of manifold-bundles over spheres
\nby Georg Frenck (University of Augsburg) as part of Purdue Topology Semi
nar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/32/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Seaokbong Seol (Penn State)
DTSTART:20211215T163000Z
DTEND:20211215T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/33
DESCRIPTION:by Seaokbong Seol (Penn State) as part of Purdue Topology Semi
nar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/33/
END:VEVENT
BEGIN:VEVENT
SUMMARY:José Cantarero (CIMAT)
DTSTART:20220209T163000Z
DTEND:20220209T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/34
DESCRIPTION:Title: Configuration spaces of commuting elements\nby José Ca
ntarero (CIMAT) as part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/34/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anna Marie Bohmann (Vanderbilt University)
DTSTART:20220216T163000Z
DTEND:20220216T173000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/35
DESCRIPTION:Title: Free Loop Spaces and Topological coHochschild Homology\
nby Anna Marie Bohmann (Vanderbilt University) as part of Purdue Topology
Seminar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/35/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alexis Aumonier ((University of Copenhagen))
DTSTART:20220223T160000Z
DTEND:20220223T170000Z
DTSTAMP:20260404T094939Z
UID:PurdueTopology/36
DESCRIPTION:Title: An h-principle for complements of discriminants\nby Ale
xis Aumonier ((University of Copenhagen)) as part of Purdue Topology Semin
ar\n\nAbstract: TBA\n
LOCATION:https://stable.researchseminars.org/talk/PurdueTopology/36/
END:VEVENT
END:VCALENDAR