Mathematics – Analysis of PDEs
Scientific paper
2009-03-15
Mathematics
Analysis of PDEs
This is an extended version of an article appeared in \emph{Functional Analysis and Evolution Equations -- The G\"unter Lumer
Scientific paper
We discuss a Hilbert space method that allows to prove analytical well-posedness of a class of linear strongly damped wave equations. The main technical tool is a perturbation lemma for sesquilinear forms, which seems to be new. In most common linear cases we can furthermore apply a recent result due to Crouzeix--Haase, thus extending several known results and obtaining optimal analyticity angle.
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