most citedDiscrete skew selfadjoint canonical systems and the isotropic Heisenberg magnet model

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math.SP2004★ 36 cited

Discrete skew selfadjoint canonical systems and the isotropic Heisenberg magnet model

M. A. Kaashoek, A. L. Sakhnovich

A discrete analog of a skew selfadjoint canonical (Zakharov-Shabat or AKNS) system with a pseudo-exponential potential is introduced. For the corresponding Weyl function the direct…