Some general local variational principles
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- by Paul Binding and Qiang Ye
- Proc. Amer. Math. Soc. 114 (1992), 107-114
- DOI: https://doi.org/10.1090/S0002-9939-1992-1072084-7
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Abstract:
Local variational min-sup characterizations are presented for the real spectrum of a selfadjoint operator pencil. Instead of minimizing over all subspaces of fixed codimension as in the classical result, the new characterizations minimize over subspaces that are close to extremal subspaces. In this way, the entire real spectrum, including continuous spectrum, can be characterized.References
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Bibliographic Information
- © Copyright 1992 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 114 (1992), 107-114
- MSC: Primary 47A75; Secondary 47A10, 47A56, 49R05
- DOI: https://doi.org/10.1090/S0002-9939-1992-1072084-7
- MathSciNet review: 1072084