Solution of irregular problems by the asymptotic method
We investigate the Regge problem in Sobolev spaces with a weight. Moreover, conditions of proved theorems are weaker than those in the author’s paper published in the Journal of Mathematical Analysis and Applications 220 (1998), pp. 224–249. We prove an isomorphism, coerciveness with a defect with respect to the spectral parameter and 2-fold completeness of root functions of the Regge problem. By the suggested method one can investigate both irregular and regular problems.
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