Jost Functions and Jost Solutions for Jacobi Matrices, II. Decay and Analyticity
classification
🧮 math.SP
math-phmath.MP
keywords
jostdecayjacobianalyticityconditionscorrespondingdegreeexponential
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We present necessary and sufficient conditions on the Jost function for the corresponding Jacobi parameters $a_n -1$ and $b_n$ to have a given degree of exponential decay.
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