The number of eigenvalues of the matrix Schrödinger operator on the half line with general boundary conditions

Ricardo Weder

Published 2017-05-09Version 1

We prove a bound, of Birman-Schwinger type, on the number of eigenvalues of the matrix Schr\"odinger operator on the half line, with the most general self adjoint boundary condition at the origin, and with selfadjoint matrix potentials that are integrable and have a finite first moment.