Seminar Calendar
for events the day of Thursday, September 7, 2017.

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Questions regarding events or the calendar should be directed to Tori Corkery.
     August 2017           September 2017          October 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  5                   1  2    1  2  3  4  5  6  7
6  7  8  9 10 11 12    3  4  5  6  7  8  9    8  9 10 11 12 13 14
13 14 15 16 17 18 19   10 11 12 13 14 15 16   15 16 17 18 19 20 21
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27 28 29 30 31         24 25 26 27 28 29 30   29 30 31



Thursday, September 7, 2017

Harmonic Analysis and Differential Equations
1:00 pm   in 243 Altgeld Hall,  Thursday, September 7, 2017
 Del Edit Copy
Submitted by verahur.
 Zhiwu Lin (Georgia Institute of Technology)Dynamics near traveling waves of supercritical KDV equationsAbstract: Consider generalized KDV equations with a power non-linearity (u^p)_x. These KDV equations have solitary traveling waves, which are linearly unstable when p>5 (supercritical case). Jointly with Jiayin Jin and Chongchun Zeng, we constructed invariant manifolds (stable, unstable and center) near the orbit of the unstable traveling waves in the energy space. These invariant manifolds are used to give a complete description of the local dynamics near unstable traveling waves. In particular, the global existence with orbital stability is shown on the center manifold of co-dimension two, while the exponential instability is proved for initial data not on the center manifold.

Mathematics Colloquium
4:00 pm   in 245 Altgeld Hall,  Thursday, September 7, 2017
 Del Edit Copy
Submitted by kapovich.
 Moon Duchin (Tufts)TBA

Illinois Geometry Lab
5:15 pm   in 245 Altgeld Hall,  Thursday, September 7, 2017
 Del Edit Copy
Submitted by tyson.
 IGL Kickoff MeetingAbstract: Fall 2017 organizational meeting for the Illinois Geometry Lab.