Displaying similar documents to “Scattering properties for a pair of Schrödinger type operators on cylindrical domains”

Discreteness of the spectrum for some differential operators with unbounded coefficients in R n

Giorgio Metafune, Diego Pallara (2000)

Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni

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We give sufficient conditions for the discreteness of the spectrum of differential operators of the form A u = - u + F , u in L μ 2 R n where d μ x = e - F x d x and for Schrödinger operators in L 2 R n . Our conditions are also necessary in the case of polynomial coefficients.