On two-dimensional finite-gap potential Schrodinger and Dirac operators with singular spectral curves
Abstract
Description
We describe two-dimensional potential Schrodinger and Dirac operators which are finite-gap at one energy level and have singular spectral curves. It appears that the singularities can be rather complicated. Such Dirac operators appear as the spectral curves of tori immersed into the three-space.
14 pages, LaTeX, 2 figures
14 pages, LaTeX, 2 figures