# Isospectral potentials on a discrete lattice. III

Kappeler, T (1989). Isospectral potentials on a discrete lattice. III. Transactions of the American Mathematical Society, 314(2):815-824.

## Abstract

Continuing prior work of the author, spectral problems for a discretized version of the Schrödinger equation 'Laplacian plus potential' on the torus are considered. Spectral invariants are constructed and with their help isospectral sets of certain nongeneric potentials are determined.

## Abstract

Continuing prior work of the author, spectral problems for a discretized version of the Schrödinger equation 'Laplacian plus potential' on the torus are considered. Spectral invariants are constructed and with their help isospectral sets of certain nongeneric potentials are determined.

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