- 96-495 Gerald Teschl
- Deforming the point spectra of one-dimensional Dirac operators
Oct 21, 96
(auto. generated ps),
of related papers
Abstract. We provide a method of inserting and removing any finite number of
into spectral gaps of a given one-dimensional Dirac operator. This is done
in such a way
that the original and deformed operator are unitarily equivalent when
the complement of the subspace spanned by the newly inserted eigenvalue.
Moreover, the unitary transformation operator which links the
original operator to its deformed version is explicitly determined.