On the Laplace operator with non-local boundary conditions and Bose condensation
The author studies the spectrum of the Laplacian on the disk of radius R, with the boundary condition \(\partial u/\partial r+Qu|_{r=R}=0\), where Q is a convolution type operator. Asymptotic behavior of the spectrum is obtained when R tends to infinity, and applications to Bose condensation are given.
scientific article; zbMATH DE number 4179950
scientific article