Scattering Matrices for Micro Schemes
V. M. Adamyan · Birkhäuser Basel eBooks · 1992
A mathematical model for a simple microscheme is constructed on the basis of the scattering theory for a pair of different self-adjoint extensions of the same symmetric ordinary differential operator on a one-dimensional manifold, which consist of a finite number of semiinfinite straight outer lines attached to a “black box” in a form of a flat connected graph. An explicit expression for the scattering is given under a continuity condition at the graph vertices.