Eigenvalue problems on infinite intervals

Markowich, Peter A.

doi:10.1090/S0025-5718-1982-0669637-6

Eigenvalue problems on infinite intervals
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Math. Comp. 39 (1982), 421-441 Request permission

Abstract:

This paper is concerned with eigenvalue problems for boundary value problems of ordinary differential equations posed on an infinite interval. Problems of that kind occur for example in fluid mechanics when the stability of laminar flows is investigated. Characterizations of eigenvalues and spectral subspaces are given, and the convergence of approximating problems, which are derived by reducing the infinite interval to a finite but large one and by imposing additional boundary conditions at the far end, is proved. Exponential convergence is shown for a large class of problems.

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