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Phillips 247

October 2016

Dror Bar-Natan, Triangle Topology Seminar

October 10, 2016 @ 3:30 pm - 5:00 pm

Title: A Poly-Time Knot Polynomial Via Solvable Approximation Abstract: I will construct the first poly-time-computable knot polynomial since Alexander's (1928) by using some new commutator-calculus techniques and a Lie algebra ${\mathfrak g}_1$ which is at the same time solvable and an approximation of the simple Lie algebra $sl_2$. Slides for the talk can be found at http://www.math.toronto.edu/drorbn/Talks/UNC-1610/.

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February 2017

Thomas Duyckaerts (University Paris 13), PDE Mini-school

February 13, 2017 @ 11:15 am - February 15, 2017 @ 12:05 pm

Title:  Dynamics of the energy critical wave equations Abstract:  These lectures concern the energy-critical focusing nonlinear wave equation. It is conjectured that any solution of this equation that is bounded in the energy space is asymptotically the sum of a finite number of decoupled solitons and a radiation term. My goal is to prove this conjecture for radial solutions in space dimension 3 and to give partial results in the general case. This is based on joint works with Hao…

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Thomas Duyckaerts (University Paris 13), PDE Mini-School

February 15, 2017 @ 11:15 am - 12:05 pm

Title:  Dynamics of the energy critical wave equations Abstract:  These lectures concern the energy-critical focusing nonlinear wave equation. It is conjectured that any solution of this equation that is bounded in the energy space is asymptotically the sum of a finite number of decoupled solitons and a radiation term. My goal is to prove this conjecture for radial solutions in space dimension 3 and to give partial results in the general case. This is based on joint works with Hao…

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April 2017

Jonathan Zhu, PDE Mini-School

April 13, 2017 @ 2:00 pm - 2:30 pm

Title:  TBA Abstract:  TBA

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Ao Sun, PDE Mini-School

April 13, 2017 @ 2:30 pm - 3:00 pm

Title:  TBA Abstract:  TBA

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