Mathematics – Spectral Theory
Scientific paper
1998-09-29
Mathematics
Spectral Theory
Scientific paper
We prove sharp L^2 boundary decay estimates for the eigenfunctions of certain
second order elliptic operators acting in a bounded region, and of their first
order space derivatives, using only the Hardy inequality. We then deduce bounds
on the change of the eigenvalues when the region is reduced slightly in size,
subject to DBCs.
Davies Brian E.
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