Date

2019年3月6日 (水) 11:00 12:00

Prof. Ada Yonath, Nobel Laureate in chemistry 2009, Weizmann Institute of Science

Language: English

Date

2019年3月7日 (木) 16:00 17:00

Prof. Donald Hilvert, Laboratory of Organic Chemistry, ETH Zürich, Zurich, Switzerland.

Language: English

 

Date

2019年2月27日 (水) 16:00 17:00

"Dr. Sei Sai, Senior Researcher, National Institutes for Quantum and Radiological
Science and Technology. Language: English, no interpretation."

Date

2019年3月6日 (水) 13:00 14:00

"Dr. Toru Hirota, Chief, Cancer Institute of the Japanese Foundation for Cancer Research. Language: English, no interpretation."

Date

2019年2月27日 (水) 13:00 14:00

"Dr. Kentaro Semba, Professor, Waseda University. Language: English, no interpretation."

Date

2019年3月5日 (火) 10:30 11:30

Seminar by Chushun Tian, Professor at Institute of Theoretical Physics, Chinese Academy of Sciences. All is welcome.

Date

2019年4月2日 (火) 10:00 11:00

Speaker: Dr. Sarah Kostinski, Postdoc at Tel Aviv University. Apri 2 at 10am in C016-Lab1.

Date

2019年2月25日 (月) 16:00 17:00
Abstract: The sphere packing problem in d dimensions asks for the densest packing of spheres in d-dimensional Euclidean space R^d. Prior to 2016, the problem had only been solved in dimensions 2 and 3 (with the solution in dimension 3 being Hales's famously complicated solution to Kepler's conjecture), and solutions in most other dimensions were thought to be out of reach, except for dimensions 8 and 24 where overwhelming numerical and theoretical evidence supported the conjectures pointing at specific lattices as the optimal packings. In a breakthrough in 2016, Maryna Viazovska published a stunning proof for the 8-dimensional case, followed up shortly with a proof for the 24-dimensional case with several coauthors. The solutions work by using a previous reduction of the problem (due to Henry Cohn and Noam Elkies) to a problem in harmonic analysis, and ingeniously solving that analysis problem using number-theoretic tools - specifically, the mathematics of modular forms.
 
In this talk I will give a quick survey of these developments and the beautiful new challenges and opportunities that they open up for attacking this classical geometry problem. I will also discuss my own recent results on infinite series representations for the Riemann xi function and explain how Viazovska's work, which appears not strongly related to the problem I was studying, nonetheless provided me with useful inspiration.

Date

2019年2月22日 (金) 14:00 16:00

Peer Review: a Practical Guide to Helping Improve Others’ Research

Date

2019年3月28日 (木) 12:00 13:00

This talk provides an overview of these changes and touches on the possible consequences of new initiatives, which can be applied by researchers in their roles as authors, readers, referees and editors. 

Everyone is welcom! No registration is required!

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