Intertwining technique for a system of difference Schroedinger equations and new exactly solvable multichannel potentials
英文摘要：
The intertwining operator technique is applied to difference Schroedinger equations with operator-valued coefficients. It is shown that these equations appear naturally when a discrete basis is used for solving a multichannel Schroedinger equation. New families of exactly solvable multichannel Hamiltonians are found.
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