Lyapunov functionals for the heat equation and sharp inequalities

Autori

  • Giuseppe Toscani Università degli Studi di Pavia Dipartimento di Matematica

DOI:

https://doi.org/10.1478/AAPP.91S1A18

Abstract

The heat equation represents a powerful instrument to obtain a number of mathematical inequalities in sharp form. This may be not so well-known property goes back more or less to half a century ago, when independently from each others, researchers from information theory [22, 6] and kinetic theory [20] established a useful connection between Boltzmann’s H-functional and Fisher information exactly by means of the solution to the heat equation. In this note, we briefly discuss these original ideas, together with some new application.

Pubblicato

2013-01-29

Fascicolo

Sezione

Special issue in memory of Prof. Giovanni Crupi