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On the field of values of oblique projections

โœ Scribed by Valeria Simoncini; Daniel B. Szyld


Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
190 KB
Volume
433
Category
Article
ISSN
0024-3795

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๐Ÿ“œ SIMILAR VOLUMES


Singular value estimates of oblique proj
โœ Jorge Antezana; Gustavo Corach ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 140 KB

Let W and M be two finite dimensional subspaces of a Hilbert space H such that H = W โŠ• M โŠฅ , and let P W M โŠฅ denote the oblique projection with range W and nullspace M โŠฅ . In this article we get the following formula for the singular values of P W M โŠฅ : where the minimum is taken over the set of al

On the Projective Schur Group of a Field
โœ E. Aljadeff; J. Sonn ๐Ÿ“‚ Article ๐Ÿ“… 1995 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 514 KB

If \(k\) is a field, the projective Schur group \(\operatorname{PS}(k)\) of \(k\) is the subgroup of the Brauer group \(\operatorname{Br}(k)\) consisting of those classes which contain a projective Schur algebra, i.e., a homomorphic image of a twisted group algebra \(k^{\text {" }} G\) with \(G\) fi