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BEGIN:VEVENT
SUMMARY:Group actions on rings and group cohomology
DTSTART;VALUE=DATE-TIME:20150630T070000Z
DTEND;VALUE=DATE-TIME:20150630T075000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2192@indico.math.cnrs.fr
DESCRIPTION:Speakers: Peter Symonds (Manchester)\n\nWe consider a finite g
roup G acting on a polynomial ring k[V] and try to understand the multipli
city of a given indecomposable kG-summand in terms of commutative algebra.
We then try and do the same for cohomology of a group\, considering it as
a Mackey functor on the subgroups of G.\n\nhttps://indico.math.cnrs.fr/ev
ent/596/contributions/2192/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2192/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Calculating with power operations for Morava E-theory at height 2
DTSTART;VALUE=DATE-TIME:20150629T143000Z
DTEND;VALUE=DATE-TIME:20150629T152000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2193@indico.math.cnrs.fr
DESCRIPTION:Speakers: Charles Rezk (UIUC)\n\nThere is a robust theory of p
ower operations for Morava E-theory. At\nheight 2\, this theory is suffic
iently robust to allow complete\ncalculations. We provide some examples.\
n\nhttps://indico.math.cnrs.fr/event/596/contributions/2193/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2193/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Descent up to nilpotence in equivariant stable homotopy theory
DTSTART;VALUE=DATE-TIME:20150630T130000Z
DTEND;VALUE=DATE-TIME:20150630T135000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2194@indico.math.cnrs.fr
DESCRIPTION:Speakers: Niko Naumann (Regensburg)\n\nWe will report on joint
work (partially in progress) with Akhil Mathew and Justin Noel about desc
ent in an equivariant context. This allows to revisit and extend various c
lassical results of Quillen\, Hopkins/Kuhn/Ravenel\, and Thomason and lead
s to a number of interesting questions and conjectures.\n\nhttps://indico.
math.cnrs.fr/event/596/contributions/2194/
URL:https://indico.math.cnrs.fr/event/596/contributions/2194/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Homology of functors from groups to abelian groups
DTSTART;VALUE=DATE-TIME:20150630T090000Z
DTEND;VALUE=DATE-TIME:20150630T095000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2195@indico.math.cnrs.fr
DESCRIPTION:Speakers: Christine Vespa (Strasbourg)\n\nFunctor homology (i.
e. homological algebra in functor categories) on a suitable category allow
us to compute some stable homology of linear groups\, orthogonal groups o
r symplectic groups with twisted coefficients. \n\nLittle is known concern
ing stable homology of automorphism groups of free groups with twisted coe
fficients. We have cancellation results\, several computations in small de
gree by Satoh and explicit classes constructed by Kawazumi. Homology of fu
nctors from groups to abelian groups should help us to better understand s
table homology of automorphism groups of free groups with twisted coeffici
ents. \n\nIn this talk\, I will explain the previous motivation for the st
udy of homology of functors from groups to abelian groups and I will give
several results concerning this functor homology.\n\nhttps://indico.math.c
nrs.fr/event/596/contributions/2195/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2195/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Characterististic classes in TMF_0(3)
DTSTART;VALUE=DATE-TIME:20150629T130000Z
DTEND;VALUE=DATE-TIME:20150629T135000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2196@indico.math.cnrs.fr
DESCRIPTION:Speakers: Gerd Laures (Bochum)\n\nWe develop a theory of chara
cteristic classes for the cohomology of topological modular forms with \\G
amma_0(3)-level structures. These classes are supposed to play an importan
t role in the determination of the string bordism ring. It turns out that
the TMF_0(3)-cohomology of BString is freely generated by Pontryagin class
es and one extra class which relates to the theory of cubical structures f
or line bundles on elliptic curves.\n\nhttps://indico.math.cnrs.fr/event/5
96/contributions/2196/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2196/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Resolutions and duality in K(2)-local homotopy theory
DTSTART;VALUE=DATE-TIME:20150629T090000Z
DTEND;VALUE=DATE-TIME:20150629T095000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2197@indico.math.cnrs.fr
DESCRIPTION:Speakers: Paul Goerss (Northwestern)\n\nSome time ago\, Goerss
\, Henn\, Mahowald\, and Rezk produced a topological resolution of the K(2
)-local sphere at the prime 3. Along with the emergence of topological mod
ular forms\, this was one of the events that helped organize our thinking
about the entire K(2)-local category. The occasion of this conference seem
s a good time to revisit these constructions and some of the theorems that
followed\, both new and old.\n\nhttps://indico.math.cnrs.fr/event/596/con
tributions/2197/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2197/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The ring of cooperations for 2-primary tmf
DTSTART;VALUE=DATE-TIME:20150701T090000Z
DTEND;VALUE=DATE-TIME:20150701T095000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2198@indico.math.cnrs.fr
DESCRIPTION:Speakers: Mark Behrens (Notre Dame)\n\nThis talk represents jo
int work with Kyle Ormsby\, Nat Stapleton\, and Vesna Stojanoska. \n\nI wi
ll describe 3 different perspective on tmf_*tmf (localized at 2).\n(1) the
E_2-term of the Adams spectral sequence for tmf_*tmf decomposes as a dire
ct sum of ext groups associated to bo-Brown-Gilter modules\, \n(2) modulo
torsion\, tmf_*tmf embeds into the ring of 2-variable modular forms\, and
\n(3) modulo v_2-torsion\, tmf_*tmf embeds into a product of TMF_0(N)_*\,
for various values of N\, and how they are related.\n\nhttps://indico.math
.cnrs.fr/event/596/contributions/2198/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2198/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Around Takayasu's cofiber sequences
DTSTART;VALUE=DATE-TIME:20150701T100000Z
DTEND;VALUE=DATE-TIME:20150701T105000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2199@indico.math.cnrs.fr
DESCRIPTION:Speakers: Lionel Schwartz (Paris 13)\n\nS. Takaysu introduced
certain cofiber sequences which generalize the identification of a stunted
infinite projective space with a certain Thom space. These sequences occu
r within the context of the Arone-Goodwillie tower for\nexample. We will d
escribe a new construction of these sequences. The construction uses certa
in properties of Lannes' T functor which will be discussed.\n \n(joint wo
rk with Nguyen Dang Ho Hai)\n\nhttps://indico.math.cnrs.fr/event/596/contr
ibutions/2199/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2199/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Chromatic Gorenstein descent
DTSTART;VALUE=DATE-TIME:20150701T070000Z
DTEND;VALUE=DATE-TIME:20150701T075000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2200@indico.math.cnrs.fr
DESCRIPTION:Speakers: John Greenlees (Sheffield)\n\nIt is elementary that
ku (with coefficients Z[v]) is Gorenstein of shift -3.\nIt follows that KU
(with coefficients Z[v\, 1/v]) is Anderson self-dual (with shift one more
) and by descent that ko is Gorenstein of shift -5 and KO is Anderson self
-dual (of shift one more).\n\nThere are a number of similar examples arisi
ng from topological modular (tmf(2)\, tmf(3)) and automorphic forms. The t
alk will describe the general context\, how to predict the change in shift
s under descent\, and some particular cases (Joint work with Vesna Stojano
ska).\n\nhttps://indico.math.cnrs.fr/event/596/contributions/2200/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2200/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Automorphisms of p-completed classifying spaces of groups of Lie
type
DTSTART;VALUE=DATE-TIME:20150630T100000Z
DTEND;VALUE=DATE-TIME:20150630T105000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2201@indico.math.cnrs.fr
DESCRIPTION:Speakers: Bob Oliver (Paris 13)\n\n(See PDF.)\n\nhttps://indic
o.math.cnrs.fr/event/596/contributions/2201/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2201/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Invertible modules over higher real K-theory spectra
DTSTART;VALUE=DATE-TIME:20150629T100000Z
DTEND;VALUE=DATE-TIME:20150629T105000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2202@indico.math.cnrs.fr
DESCRIPTION:Speakers: Vesna Stojanoska (MPI Bonn)\n\nFor a finite subgroup
G of the Morava stabilizer group of height n at a prime p\, there is an a
ssociated ring spectrum EO = (E_n)^{hG} of homotopy fixed points of Morava
E-theory E_n under its G-action. The spectra EO carry some tractable info
rmation about the K(n)-local sphere. We study their Picard groups\, and sh
ow that\, when n=p-1\, Pic(EO) is always cyclic. This is joint work with D
rew Heard and Akhil Mathew.\n\nhttps://indico.math.cnrs.fr/event/596/contr
ibutions/2202/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2202/
END:VEVENT
BEGIN:VEVENT
SUMMARY:On some resolutions in the category HV_{fg}-U
DTSTART;VALUE=DATE-TIME:20150630T143000Z
DTEND;VALUE=DATE-TIME:20150630T152000Z
DTSTAMP;VALUE=DATE-TIME:20220927T121800Z
UID:indico-contribution-2203@indico.math.cnrs.fr
DESCRIPTION:Speakers: Jean Lannes (Paris 7)\n\nSee PDF.\n\nhttps://indico.
math.cnrs.fr/event/596/contributions/2203/
LOCATION:Grand Amphi de Maths
URL:https://indico.math.cnrs.fr/event/596/contributions/2203/
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