Singular value estimates of oblique projections |
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Authors: | Jorge Antezana Gustavo Corach |
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Institution: | a Departamento de Matemática, FCE-UNLP, La Plata, Argentina b Departamento de Matemática, FI-UBA, Buenos Aires, Argentina c IAM-CONICET, Saavedra 15, Piso 3 (1083), Buenos Aires, Argentina |
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Abstract: | Let W and M be two finite dimensional subspaces of a Hilbert space H such that H=W⊕M⊥, and let PW‖M⊥ denote the oblique projection with range W and nullspace M⊥. In this article we get the following formula for the singular values of PW‖M⊥ |
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Keywords: | Primary: 15A18 15A23 Secondary: 47A63 |
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