On a family of differential operators wi
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G. Rozenblum; M. Solomyak
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Article
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2007
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Elsevier Science
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English
⚖ 223 KB
We study a family of differential operators L in two variables, depending on the coupling parameter 0 that appears only in the boundary conditions. Our main concern is the spectral properties of L , which turn out to be quite different for < 1 and for > 1. In particular, L has a unique self-adjoint