Colloquium Mathematics, Professor John N. Mather
Join us for coffee and tea at 15.30 p.m.
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Date: |
Tuesday, April 15th 2014 |
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Speaker: |
Professor John N. Mather, |
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Room: |
5161.0293 (Bernoulliborg) |
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Time: |
16.00 |
Title:
The work of Cheng and of Kaloshin and Zhang on Arnold diffusion for two and a half degrees of freedom.
Abstract:
More than a decade ago, I announced a proof of results on Arnold diffusion for two and a half degrees of freedom. I spent more than a decade writing a proof and never finished it.
Now two proofs of results similar to the ones I announced have appeared, one by Chong-Qing Cheng and the other by Kaloshin and Zhang. Both involve great simplifications and improvements.
I will attempt to describe the simplifications and improvements of these authors.
Colloquium coordinators are Prof.dr. A.C.D. van Enter (e-mail : A.C.D.van.Enter@rug.nl) and Dr. A.V. Kiselev (e-mail: a.v.kiselev rug.nl )
http://www.rug.nl/research/jbi/news/colloquia/mathematics-colloquia/
| Last modified: | 10 February 2021 2.27 p.m. |
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