Department of

Mathematics


Seminar Calendar
for events the day of Friday, March 10, 2017.

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Questions regarding events or the calendar should be directed to Tori Corkery.
    February 2017            March 2017             April 2017     
 Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
           1  2  3  4             1  2  3  4                      1
  5  6  7  8  9 10 11    5  6  7  8  9 10 11    2  3  4  5  6  7  8
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 19 20 21 22 23 24 25   19 20 21 22 23 24 25   16 17 18 19 20 21 22
 26 27 28               26 27 28 29 30 31      23 24 25 26 27 28 29
                                               30                  

Friday, March 10, 2017

4:00 pm in 345 Altgeld Hall,Friday, March 10, 2017

Strong Theories of Ordered Abelian groups

Travis Nell (UIUC Math)

Abstract: We will continue discussing the paper "Strong Theories of Ordered Abelian Groups" by A. Dolich and J. Goodrick

4:00 pm in 241 Altgeld Hall,Friday, March 10, 2017

Stability of relative equilibria and isomorphic vector fields

Stefan Klajbor Goderich (UIUC Math)

Abstract: We present applications of the notion of isomorphic vector fields to the study of nonlinear stability of relative equilibria. Isomorphic vector fields were introduced by Hepworth in his study of vector fields on differentiable stacks. Here we argue in favor of the usefulness of replacing an invariant vector field on a manifold by an isomorphic one to study nonlinear stability of relative equilibria. In particular, we use this idea to obtain a criterion for nonlinear stability. As an application, we sketch how to use this to obtain Montaldi and Rodrı́guez-Olmos’s criterion for stability of Hamiltonian relative equilibria.