Zaher Hani: On Hilbert’s sixth problem
Автор: IAMP Seminars
Загружено: 2025-05-27
Просмотров: 893
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Hilbert’s sixth problem asks for the axiomatic derivation of the laws of physics from first principles. Within this broad question, Hilbert singled out the derivation of the laws of fluid mechanics (like Euler’s or Navier-Stokes’ equations) by way of rigorously justifying Boltzmann’s kinetic theory for particle systems. This will be the subject of our talk. The rigorous derivation of Boltzmann’s kinetic equation was established for short times in a classic work of Lanford (1975), following inputs from Grad and Cercignani. However, Hilbert’s sixth problem requires a long time version of this result. In a recent work with Yu Deng (Chicago) and Xiao Ma (Michigan), we extend Lanford’s theorem to long times; more precisely, for as long as the solution of Boltzmann’s equation exists. This follows an earlier work joint work with Yu Deng that resolves a parallel problem for wave systems, where colliding particles are replaced by nonlinear interacting waves.
One world IAMP mathematical physics seminar
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