Université de Strasbourg

Fri 3 Jun 2016, 11:00am
Topology and related seminars
ESB 4133 (PIMS Lounge)

Some group cohomology calculations in stable homotopy theory

ESB 4133 (PIMS Lounge)
Fri 3 Jun 2016, 11:00am12:00pm
Abstract
The cohomology of certain padic Lie groups plays a central role in chromatic homotopy theory. In this talk I will discuss these groups and discuss some of their elementary group theoretical structure. Then I will explain some recent group cohomology calculations relevant for stable homotopy theory. In particular I will highlight the result of some highly nontrivial calculation resulting in a surprising isomorphism which cries out for a conceptual explanation.
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RIMS Kyoto

Thu 23 Jun 2016, 3:00pm
Probability Seminar
ESB 2012

Stability of heat kernel estimates and parabolic Harnack inequalities for jump processes on metric measure spaces

ESB 2012
Thu 23 Jun 2016, 3:00pm4:00pm
Abstract
We consider mixedtype jump processes on metric measure spaces and prove the stability of twosided heat kernel estimates, heat kernel upper bounds, and parabolic Harnack inequalities. We establish their stable equivalent characterizations in terms of the jump kernels, modifications of cutoff Sobolev inequalities, and the Poincar\'e inequalities. In particular, we prove the stability of heat kernel estimates for \alpha stablelike processes even with \alpha\ge 2, which has been one of the major open problems in this area. We will also explain applications to stochastic processes on fractals.
This is a joint work with Z.Q. Chen (Seattle) and J. Wang (Fuzhou).
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University of Aberdeen

Tue 28 Jun 2016, 3:00pm
Algebraic Groups and Related Structures
MATH 126

The stable module category of a finite group scheme

MATH 126
Tue 28 Jun 2016, 3:00pm4:00pm
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