BEGIN:VCALENDAR
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CALSCALE:GREGORIAN
X-WR-CALNAME:researchseminars.org
BEGIN:VEVENT
SUMMARY:Anibal Medina (EPFL)
DTSTART:20200722T153000Z
DTEND:20200722T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/1
DESCRIPTION:Title: A finitely presented E-infinity prop\nby Anibal Medina (EPFL) a
s part of Purdue Topology Seminar\n\n\nAbstract\nThe Comm operad in chain
complexes admits a presentation in terms of finitely many generators and r
elations\, but no such presentation can be given for a sigma-free resoluti
on 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 c
omplexes and of cellular spaces. We relate the operads associated with the
se to the E-infinity operad models introduced by McClure-Smith\, Berger-Fr
esse and Kaufmann\, and describe novel actions on simplicial and cubical s
ets complementing these authors' work.\n\nPlease email purduetopologysemin
ar@gmail.com before Wednesday with a request to obtain the link for the Zo
om meeting.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/1/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andrea Bianchi (University of Bonn)
DTSTART:20200909T153000Z
DTEND:20200909T163000Z
DTSTAMP:20260422T225925Z
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\nAbst
ract\nSullivan associates to the dg commutative algebra of Chevalley-Eilen
berg cochains C*(g) on a nilpotent (or pro-nilpotent) differential graded
Lie algebra g a Kan complex \, using the differential graded commut
ative algebras Ω(Δn) of polynomial-coefficient differential forms on the
simplex. If g is a Lie algebra\, with Lie group G\, this Kan complex is n
ot isomorphic to BG. In 2004\, using Dupont's explicit simplicial homotopy
for the de Rham theorem\, I showed that has a natural simplicial
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 trivial fibra
tions 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 inclusion of γ
(g) in is a homotopy equivalence\;\n 4) if g is a nilpotent Lie a
lgebra\, γ(g) is naturally isomorphic to BG\;\n 5) if g vanishes in nega
tive degree\, γ(g) is the nerve of the Deligne groupoid of g.\n \nIn fact
\, γ(g) is really a derived stack\, but I will focus on the underlying si
mplicial set\, since it exhibits all of the essential ideas of the constru
ction.\n\nIn this talk\, I give a new approach to γ(g)\, using differenti
al forms on the cube. The explicit homotopy for the de Rham theorem is muc
h easier to construct for cubes: the main new result is that this homotopy
is not just cubical in the sense of Serre\, but also in the sense of Brow
n and Higgins. This is an important refinement\, since the analogue of Moo
re's theorem that a simplicial group is a Kan complex need the enrichment
of Brown and Higgins (what they call connections) in order to hold\, by th
e work of Tonks.\n\nReplacing the cube by the cubical complex Qn\, associa
ted with straightening/unstraightening over a point\, we obtain a new cons
truction of a functor from L-infinity algebras to Kan complexes with the s
ame properties as γ(g).\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/2/
END:VEVENT
BEGIN:VEVENT
SUMMARY:TBA
DTSTART:20200916T153000Z
DTEND:20200916T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/3
DESCRIPTION:by TBA as part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/3/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Pavel Safronov (University of Edinburgh)
DTSTART:20200923T153000Z
DTEND:20200923T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/4
DESCRIPTION:Title: Coproduct in string topology\, Euler structures and topological fie
ld theories.\nby Pavel Safronov (University of Edinburgh) as part of P
urdue Topology Seminar\n\n\nAbstract\nChas and Sullivan have introduced in
teresting algebraic operations on the homology of the free loop space of a
manifold which go under the name of the string topology operations. Cohen
—Gaudin gave a TFT interpretation of the string product. Moreover\, Cohe
n—Klein—Sullivan have shown that the string product is homotopy-invari
ant. In this talk I will explain a TFT interpretation of the string coprod
uct by disassembling it into elementary pieces. In particular\, I will exp
lain a conjecture that the string coproduct is not homotopy-invariant and
changes by the Whitehead torsion. This is a report on work in progress joi
nt with Florian Naef.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/4/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Julian Holstein (University of Hamburg)
DTSTART:20200930T153000Z
DTEND:20200930T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/5
DESCRIPTION:Title: Categorical Koszul Duality\nby Julian Holstein (University of H
amburg) as part of Purdue Topology Seminar\n\n\nAbstract\nThe algebraic an
alogue of the loop space construction of topological spaces is Adams’ co
bar construction.\nTogether with the bar construction it induces a Koszul
duality between algebras and coalgebras\,\nproviding an equivalence of sui
table homotopy theories of augmented differential graded algebras and diff
erential graded conilpotent coalgebras.\nInteresting things happen as one
generalises this result\, in particular dropping the augmentation on the d
g algebra side corresponds to introducing a curvature term on the coalgebr
a side.\nI will talk about joint work with Andrey Lazarev\, in which we ge
neralise this to a categorical Koszul duality and find a category of coalg
ebras Quillen equivalent to differential graded categories. I will show th
at this construction is closely related to the coherent nerve construction
from simplicial categories to quasicategories.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/5/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Peter Smillie (Caltech)
DTSTART:20201007T153000Z
DTEND:20201007T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/6
DESCRIPTION:Title: The borders of outer space\nby Peter Smillie (Caltech) as part
of Purdue Topology Seminar\n\n\nAbstract\nThe group Out(F_n) acts properly
on a contractible space known as outer space. Motivated by the Borel-Serr
e bordification of symmetric spaces\, Bestvina and Feighn gave a bordifica
tion of outer space and used it to prove that Out(F_n) is a virtual dualit
y group. I will define outer space\, and show how to realize the Bestvina-
Feighn bordification as a deformation retract instead of an enlargement. T
his leads to a new proof that Out(F_n) is a virtual duality group and give
s an explicit polyhedral structure on the boundary of outer space.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/6/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Martin Palmer (Mathematical Institute of the Romanian Academy)
DTSTART:20201021T153000Z
DTEND:20201021T163000Z
DTSTAMP:20260422T225925Z
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://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:20260422T225925Z
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://researchseminars.org/talk/PurdueTopology/8/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ben Knudsen (Northeastern University)
DTSTART:20201104T163000Z
DTEND:20201104T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/9
DESCRIPTION:by Ben Knudsen (Northeastern University) as part of Purdue Top
ology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/9/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Carlos De La Cruz Mengual (Weizmann Institute of Science)
DTSTART:20201111T163000Z
DTEND:20201111T173000Z
DTSTAMP:20260422T225925Z
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://researchseminars.org/talk/PurdueTopology/10/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Rita Jiménez Rolland (UNAM Oaxaca)
DTSTART:20201118T163000Z
DTEND:20201118T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/11
DESCRIPTION:Title: Powers of the Euler class for pure mapping class groups\nby Ri
ta Jiménez Rolland (UNAM Oaxaca) as part of Purdue Topology Seminar\n\n\n
Abstract\nThe mapping class group of an orientable closed surface with one
marked point can be identified\, by the Nielsen action\, with a subgroup
of the group of orientation-preserving homeomorphisms of the circle. This
inclusion pulls back the “discrete universal Euler class” producing a
non-zero class in the second integral cohomology of the mapping class grou
p. In this talk\, we describe some partial results\, in ongoing work with
Solomon Jekel\, on the vanishing and non-vanishing behaviour of the powers
of this class.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/11/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ben Williams (University of British Columbia)
DTSTART:20201202T163000Z
DTEND:20201202T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/12
DESCRIPTION:by Ben Williams (University of British Columbia) as part of Pu
rdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/12/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Chris Kapulkin (University of Western Ontario)
DTSTART:20201014T153000Z
DTEND:20201014T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/13
DESCRIPTION:Title: Cubical models of (∞\,1)-categories\nby Chris Kapulkin (Univ
ersity of Western Ontario) as part of Purdue Topology Seminar\n\n\nAbstrac
t\nI will report on the joint work with B. Doherty\, Z. Lindsey\, and C. S
attler\, establishing a family of new models of (∞\,1)-categories in dif
ferent categories of (marked) cubical sets.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/13/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ryan Budney (University of Victoria)
DTSTART:20201209T163000Z
DTEND:20201209T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/14
DESCRIPTION:Title: Isotopy in dimension 4\nby Ryan Budney (University of Victoria
) 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-di
mensional analogue of a "crossing change". We sketch a geometric descrip
tion 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 transv
ersality arguments that could be thought of as encoding the rational homot
opy of the Taylor tower for various embedding spaces. The discussion will
end with some applications: "almost a counterexample" to the smooth 4-dim
ensional Schoenflies problem in dimension 4\, and some basic information a
bout the component of the trivial knot in the space of embeddings of S^2 i
nto S^4.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/14/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ozgur Bayindir (Paris 13)
DTSTART:20201216T163000Z
DTEND:20201216T173000Z
DTSTAMP:20260422T225925Z
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 study TH
H(Fp) from various perspectives. We\nstart with a new identification of TH
H(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 introduction t
o\nring spectra\, algebraic $K$-theory and the Nikolaus Scholze approach\n
to trace methods. In the second part\, I will introduce our results and\nt
he tools we\ndevelop to study the topological Hochschild homology of grade
d ring\nspectra.\n\nThis is a joint work with Tasos Moulinos.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/15/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Maru Sarazola (Cornell University)
DTSTART:20210113T163000Z
DTEND:20210113T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/16
DESCRIPTION:Title: Cotorsion pairs and a K-theory localization theorem\nby Maru S
arazola (Cornell University) as part of Purdue Topology Seminar\n\n\nAbstr
act\nCotorsion pairs were introduced in the ’70s as a generalization of
projective and injective objects in an abelian category\, and were mainly
used in the context of representation theory. In 2002\, Hovey showed a rem
arkable correspondence between compatible cotorsion pairs on an abelian ca
tegory A and abelian model structures one can define on A. These include\,
for example\, the projective and injective model structures on chain comp
lexes.\n\nIn this talk\, we turn our attention to Waldhausen categories\,
and explain how cotorsion pairs can be used to construct Waldhausen struct
ures on an exact category\, with the usual class of admissible monomorphis
ms as cofibrations\, and some freedom to choose the class of desired acycl
ic objects. This allows us to prove a new version of Quillen’s localizat
ion theorem\, relating the K-theory of exact categories A ⊆ B to that of
a cofiber\, constructed through a cotorsion pair.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/16/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Jan Steinebrunner (Oxford University)
DTSTART:20210120T163000Z
DTEND:20210120T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/17
DESCRIPTION:Title: The one-dimensional bordism category\nby Jan Steinebrunner (Ox
ford University) as part of Purdue Topology Seminar\n\n\nAbstract\nThe top
ologically enriched bordism category Bord_d has as objects closed oriented
(d-1)-manifolds and as morphism spaces the moduli spaces of oriented d-bo
rdisms. The classifying space B(Bord_d) was computed by Galatius-Madsen-Ti
llmann-Weiss\, and has been used to great success in the study of moduli s
paces.\n\nIn this talk\, after recalling Bord_d\, I will focus on its much
simpler predecessor: the homotopy category h(Bord_d) where any two diffeo
morphic bordisms are identified. Surprisingly little is known about the ho
motopy type of h(Bord_d). I will explain how to compute the classifying sp
ace of h(Bord_1) in terms of CP^\\infty_{-1} = MTSO_2. The proof makes use
of a new 'reduced' bordism category Bord_1^{red} where all circles are de
leted. \n\nAs a result of the computation we will see that B(h Bord_1) car
ries a lot of interesting information. To better understand where this is
coming from\, I will also show how to construct cocycles for an infinite f
amily of non-trivial cohomology classes kappa_i on h(Bord_1). If time perm
its I will use this to show that a large subcategory of h(Bord_2) is highl
y non-trivial.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/17/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Omar Antolín Camarena (UNAM)
DTSTART:20210127T163000Z
DTEND:20210127T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/18
DESCRIPTION:Title: Higher generation by abelian subgroups in Lie groups\nby Omar
Antolín Camarena (UNAM) as part of Purdue Topology Seminar\n\n\nAbstract\
nThe poset of cosets of Abelian subgroups of a discrete group is simply-co
nnected if and only if the group is Abelian. I'll explain this result of C
ihan Okay's and talk about an analogue for compact Lie groups. Alejandro A
dem\, Fred Cohen and Enrique Torres Giese asociated to any topological gro
up G a space E(2\,G) which plays the role of the abelian subgroup coset po
set. Simon Gritschacher and Bernardo Villarreal and I proved that a compac
t Lie group G is Abelian if and only if πᵢ(E(2\,G))=0 for i=1\,2\,4.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/18/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Nicholas Wawrykow (University of Michigan)
DTSTART:20210210T163000Z
DTEND:20210210T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/19
DESCRIPTION:Title: Secondary Representation Stability and the Ordered Configuration S
pace of the Once-Punctured Torus\nby Nicholas Wawrykow (University of
Michigan) as part of Purdue Topology Seminar\n\n\nAbstract\nIn this talk w
e discuss a notion of secondary representation stability introduced by Mil
ler and Wilson. They proved that there was a stability pattern in the homo
logy of the ordered configuration space of noncompact manifolds in a range
beyond the traditional representation stability range of Church\, Ellenbe
rg\, and Farb. We discuss their result\, and describe an example of second
ary representation stability\, namely the k-th homology of the ordered con
figuration space of 2k-2 points on the once-punctured torus\, the first kn
own example where the FIM^+ structure is neither free nor stably zero.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/19/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Boris Tsygan (Northwestern University)
DTSTART:20210303T163000Z
DTEND:20210303T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/20
DESCRIPTION:Title: Operations on Hochschild and cyclic complexes\nby Boris Tsygan
(Northwestern University) as part of Purdue Topology Seminar\n\n\nAbstrac
t\nHochschild and cyclic complexes are invariants of associative algebras
that have geometric flavour. When the algebra is a commutative algebra of
functions on a space such as a manifold\, a variety\, etc.\, these complex
es recover geometric objects on the underlying space\, such as De Rham com
plex or multi vector fields. \n\nAlgebraic structures on Hochschild and cy
clic complexes\, often generalizing classical structures on geometric obje
cts to noncommutative case but sometimes new\, had been extensively studie
d for the last forty years. Their applications include formality theorems
for deformation quantization\, generalized index theorems\, string topolog
y and its uses in symplectic topology\, etc. In my talk I will review curr
ent developments in the subject and pose some questions.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/20/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Bruno Kahn (CNRS - IMJ-PRG)
DTSTART:20210915T153000Z
DTEND:20210915T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/21
DESCRIPTION:Title: A rank spectral sequence for algebraic K-theory\nby Bruno Kahn
(CNRS - IMJ-PRG) as part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/21/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ismael Sierra (University of Cambridge)
DTSTART:20210922T153000Z
DTEND:20210922T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/22
DESCRIPTION:by Ismael Sierra (University of Cambridge) as part of Purdue T
opology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/22/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Florian Kranhold (University of Bonn)
DTSTART:20210929T153000Z
DTEND:20210929T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/23
DESCRIPTION:by Florian Kranhold (University of Bonn) as part of Purdue Top
ology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/23/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Andreas Stavrou (University of Cambridge)
DTSTART:20211006T153000Z
DTEND:20211006T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/24
DESCRIPTION:by Andreas Stavrou (University of Cambridge) as part of Purdue
Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/24/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Kai Cieliebak (Ausburg university)
DTSTART:20211013T153000Z
DTEND:20211013T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/25
DESCRIPTION:Title: Poincare duality and bialgebra structures for loop spaces.\nby
Kai Cieliebak (Ausburg university) as part of Purdue Topology Seminar\n\n
\nAbstract\nThis talk is about ongoing joint work with Nancy Hingston and
Alexandru Oancea.\n\nI will explain how various puzzles in string topology
get resolved in terms of symplectic geometry: Loop space homology and coh
omology are merged into a larger space\, Rabinowitz Floer homology\, which
is an infinitesimal bialgebra in the sense of Joni-Rota and Aguiar and sa
tisfies Poincare duality.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/25/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Ka Ho Wong (Texas A&M)
DTSTART:20211020T153000Z
DTEND:20211020T163000Z
DTSTAMP:20260422T225925Z
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\nAbstract\nI
n a series of joint works with Tian Yang\, we made a volume conjecture and
an asymptotic expansion conjecture for the relative Reshetikhin-Turaev in
variants for a closed oriented 3-manifold with a colored framed link insid
e it. We propose that their asymptotic behavior is related to the volume\,
the Chern-Simons invariant and the adjoint twisted Reidemeister torsion a
ssociated with the hyperbolic cone metric on the manifold with singular lo
cus the link and cone angles determined by the coloring.\n\nIn this talk\,
I will first discuss how our volume conjecture can be understood as an in
terpolation between the Kashaev-Murakami-Murakami volume conjecture of the
colored Jones polynomials and the Chen-Yang volume conjecture of the Resh
etikhin-Turaev invariants. Then I will describe how the adjoint twisted Re
idemeister torsion shows up in the asymptotic expansion of the invariants.
Especially\, we find new explicit formulas for the adjoint twisted Reidem
eister torsion for the fundamental shadow link complements and for the 3-m
anifold obtained by doing hyperbolic Dehn-filling on those link complement
s. Those formulas cover a very large class of hyperbolic 3-manifold and ap
pear naturally in the asymptotic expansion of quantum invariants. Finally\
, I will summarize the recent progress of the asymptotic expansion conject
ure of the fundamental shadow link pairs.\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/26/
END:VEVENT
BEGIN:VEVENT
SUMMARY:George Raptis (University of Regensburg)
DTSTART:20211103T153000Z
DTEND:20211103T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/27
DESCRIPTION:by George Raptis (University of Regensburg) as part of Purdue
Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/27/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Behrang Noohi (Queen Mary)
DTSTART:20211117T163000Z
DTEND:20211117T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/28
DESCRIPTION:Title: Categorical calculus and representation theory\nby Behrang Noo
hi (Queen Mary) as part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/28/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Xiaolei Wu (University of Bielefeld)
DTSTART:20211201T163000Z
DTEND:20211201T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/29
DESCRIPTION:Title: Homological stability for the ribbon Higman--Thompson groups\n
by Xiaolei Wu (University of Bielefeld) as part of Purdue Topology Seminar
\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/29/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Shun Wakatsuki (Shinshu University)
DTSTART:20211110T163000Z
DTEND:20211110T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/30
DESCRIPTION:by Shun Wakatsuki (Shinshu University) as part of Purdue Topol
ogy Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/30/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Daniel Lopez Neumann (Indiana University\, Bloomington)
DTSTART:20211208T163000Z
DTEND:20211208T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/31
DESCRIPTION:by Daniel Lopez Neumann (Indiana University\, Bloomington) as
part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/31/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Georg Frenck (University of Augsburg)
DTSTART:20211027T153000Z
DTEND:20211027T163000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/32
DESCRIPTION:Title: Characteristic classes of manifold-bundles over spheres\nby Ge
org Frenck (University of Augsburg) as part of Purdue Topology Seminar\n\n
Abstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/32/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Seaokbong Seol (Penn State)
DTSTART:20211215T163000Z
DTEND:20211215T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/33
DESCRIPTION:by Seaokbong Seol (Penn State) as part of Purdue Topology Semi
nar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/33/
END:VEVENT
BEGIN:VEVENT
SUMMARY:José Cantarero (CIMAT)
DTSTART:20220209T163000Z
DTEND:20220209T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/34
DESCRIPTION:Title: Configuration spaces of commuting elements\nby José Cantarero
(CIMAT) as part of Purdue Topology Seminar\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/34/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Anna Marie Bohmann (Vanderbilt University)
DTSTART:20220216T163000Z
DTEND:20220216T173000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/35
DESCRIPTION:Title: Free Loop Spaces and Topological coHochschild Homology\nby Ann
a Marie Bohmann (Vanderbilt University) as part of Purdue Topology Seminar
\n\nAbstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/35/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Alexis Aumonier ((University of Copenhagen))
DTSTART:20220223T160000Z
DTEND:20220223T170000Z
DTSTAMP:20260422T225925Z
UID:PurdueTopology/36
DESCRIPTION:Title: An h-principle for complements of discriminants\nby Alexis Aum
onier ((University of Copenhagen)) as part of Purdue Topology Seminar\n\nA
bstract: TBA\n
LOCATION:https://researchseminars.org/talk/PurdueTopology/36/
END:VEVENT
END:VCALENDAR