Prefer a chat interface with context about you and your work?
Discreteness of Transmission Eigenvalues for Higher-Order Main Terms and Perturbations
In this paper we extend Sylvester's approach via upper triangular compact operators to establish the discreteness of transmission eigenvalues for higher-order main terms and higher-order perturbations.The coefficients of the perturbations must be sufficiently smooth and the coefficients of the higher-order terms of the perturbation must vanish in a neighborhood of …