SPECTRAL DEFORMATIONS FOR QUASICYLINDRICAL DOMAINS
SPECTRAL DEFORMATIONS FOR QUASICYLINDRICAL DOMAINS
We develop the complex scaling method for the Dirichlet Laplacian in a domain with asymptotically cylindrical end. We define resonances as discrete eigenvalues of non-selfadjoint operators, obtained as deformations of the selfadjoint Dirichlet Laplacian $\Delta$ by means of the complex scaling. The resonances are identified with the poles of the …