On the numerical range of generators of symmetric $L_\infty$-contractive semigroups
Functional Analysis
2016-08-12 v2
Abstract
A result by Liskevich and Perelmuter from 1995 yields the optimal angle of analyticity for symmetric submarkovian semigroups on , . C.~Kriegler showed in 2011 that the result remains true without the assumption of positivity of the semigroup. Here we give an elementary proof of Kriegler's result.
Keywords
Cite
@article{arxiv.1603.08862,
title = {On the numerical range of generators of symmetric $L_\infty$-contractive semigroups},
author = {Markus Haase and Peer Christian Kunstmann and Hendrik Vogt},
journal= {arXiv preprint arXiv:1603.08862},
year = {2016}
}