Existence of Invariant Densities and Time Asymptotics of Conservative Linear Kinetic Equations on the Torus Without Spectral Gaps

Affiliation auteursAffiliation ok
TitreExistence of Invariant Densities and Time Asymptotics of Conservative Linear Kinetic Equations on the Torus Without Spectral Gaps
Type de publicationJournal Article
Year of Publication2021
AuteursMokhtar-Kharroubi M
JournalACTA APPLICANDAE MATHEMATICAE
Volume175
Pagination8
Date PublishedOCT
Type of ArticleArticle
ISSN0167-8019
Mots-clésAbsence of spectral gap, compactness, Invariant density, Neutron transport equation
Résumé

This work deals with general linear conservative neutron transport semigroups without spectral gaps in L-1(T-n x R-n) where T-n is the n-dimensional torus. We study the mean ergodicity of such semigroups and their strong convergence to their ergodic projections as time goes to infinity Systematic functional analytic results are given.

DOI10.1007/s10440-021-00435-0