Browsing by Author "Möller, Manfred"

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    Self-adjoint higher order differential operators with eigenvalue parameter dependent boundary conditions.
    (SpringerOpen [Commercial Publisher], 2015-12) Möller, Manfred; Zinsou, Bertin
    Eigenvalue problems for even order regular quasi-differential equations with boundary conditions which depend linearly on the eigenvalue parameter λ can be represented by an operator polynomial (Formula presented.) where M is a self-adjoint operator. Necessary and sufficient conditions are given such that also K and A are self-adjoint.