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Sums of powers: probabilistic models
【2014.11.4 10:00am, N210】

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 2014-10-31 

  Colloquia & Seminars 

  Speaker

Prof.Jean-Marc Deshouillers,Institut de Mathematique de Bordeaux, Bordeaux INP, France  

  Title

Sums of powers: probabilistic models  

  Time

2014.11.4 10:00am

  Venue

N210

  Abstract

In order to understand what could be expected for Waring's problem (I.e. expressing integers as sums of a bounded number of s-th powers), Erd\H{o}s and R\'{e}nyi introduced a random model for sums of s-th powers of integers. We shall present the history of the model, going through the arithmetic modification proposed with Hennecart and Landreau, as well as the latest developments (work under progress with Cilleruelo, Lambert and Plagne) concerning the possibility to represent-almost surely - any large integer as a sums of $s+1$ pseudo $s$-th powers, one of them being drastically limited in size. A general underlying theme of the lecture is: how good or bad are probabilistic models to mimic real life?    

  Affiliation

 

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