The Case of One Simple Eigenvalue on the Line
In the present chapter we suppose that there is one eigenvalue λ0 on the line Iλ = k 0 and that only one eigenfunction φ corresponds to λ0 (up to multiplication by a constant). We also assume that there are no generalized eigenvectors corresponding to λ0.
KeywordsAsymptotic Formula Comparison Principle Selfadjoint Operator Simple Eigenvalue Generalize Eigenvector
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