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Substochastic semigroups for transport equations with conservative boundary conditions

Substochastic semigroups for transport equations with conservative boundary conditions We consider the free streaming operator associated with conservative boundary conditions. It is known that this operator (with its usual domain) admits an extension A which generates a C 0 -semigroup $$(V_H (t))_{t \geqslant 0} $$ in L 1 . With techniques borrowed from the additive perturbation theory of substochastic semigroups, we describe precisely its domain and provide necessary and sufficient conditions ensuring $$(V_H (t))_{t \geqslant 0} $$ to be stochastic. We apply these results to examples from kinetic theory. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Evolution Equations Springer Journals

Substochastic semigroups for transport equations with conservative boundary conditions

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References (10)

Publisher
Springer Journals
Copyright
Copyright © 2005 by Birkhäuser Verlag, Basel
Subject
Mathematics; Analysis
ISSN
1424-3199
eISSN
1424-3202
DOI
10.1007/s00028-005-0209-8
Publisher site
See Article on Publisher Site

Abstract

We consider the free streaming operator associated with conservative boundary conditions. It is known that this operator (with its usual domain) admits an extension A which generates a C 0 -semigroup $$(V_H (t))_{t \geqslant 0} $$ in L 1 . With techniques borrowed from the additive perturbation theory of substochastic semigroups, we describe precisely its domain and provide necessary and sufficient conditions ensuring $$(V_H (t))_{t \geqslant 0} $$ to be stochastic. We apply these results to examples from kinetic theory.

Journal

Journal of Evolution EquationsSpringer Journals

Published: Nov 1, 2005

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