An inverse theorem for an inequality of Kneser
15 November 2017 | 9:46 pm

I have just uploaded to the arXiv the paper “An inverse theorem for an inequality of Kneser“, submitted to a special issue of the Proceedings of the Steklov Institute of Mathematics in honour of Sergei Konyagin. It concerns an inequality of Kneser discussed previously in this blog, namely that whenever are compact non-empty subsets of […]

Continuous approximations to arithmetic functions
9 November 2017 | 7:49 pm

A basic object of study in multiplicative number theory are the arithmetic functions: functions from the natural numbers to the complex numbers. Some fundamental examples of such functions include The constant function ; The Kronecker delta function ; The natural logarithm function ; The divisor function ; The von Mangoldt function , with defined to […]

IPAM program in quantitative linear algebra, Mar 19-Jun 15 2018
8 November 2017 | 4:52 am

Alice Guionnet, Assaf Naor, Gilles Pisier, Sorin Popa, Dimitri Shylakhtenko, and I are organising a three month program here at the Institute for Pure and Applied Mathematics (IPAM) on the topic of Quantitative Linear Algebra.  The purpose of this program is to bring together mathematicians and computer scientists (both junior and senior) working in various […]

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