作者: Veronica Felli , Roberto Ognibene
DOI:
关键词:
摘要: In this paper we consider a class of singularly perturbed domains, obtained by attaching cylindrical tube to fixed bounded region and letting its section shrink zero. We use an Almgren-type monotonicity formula evaluate the sharp convergence rate simple eigenvalues, via Courant-Fischer Min-Max characterization blow-up analysis for scaled eigenfunctions.