Below is the ascii version of the abstract for 03-528. The html version should be ready soon.

Steve Clark and Fritz Gesztesy
On Weyl-Titchmarsh Theory for Singular Finite Difference Hamiltonian
(116K, LaTeX)

ABSTRACT.  We develop the basic theory of matrix-valued
Weyl-Titchmarsh M-functions and the associated Green's matrices for
whole-line and half-line self-adjoint Hamiltonian finite difference
systems with separated boundary conditions.