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Some sufficient conditions for the representability of relation algebras

โœ Scribed by Roger Maddux

Book ID
112760480
Publisher
Springer
Year
1978
Tongue
English
Weight
484 KB
Volume
8
Category
Article
ISSN
0002-5240

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๐Ÿ“œ SIMILAR VOLUMES

About the relationship between some nece
About the relationship between some necessary conditions for N-representability
โœ H. Kummer ๐Ÿ“‚ Article ๐Ÿ“… 1977 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 230 KB

## Abstract The relationship between well known necessary conditions for __N__โ€representability of the reduced twoโ€density matrix is investigated. It is shown that the __G__โ€condition implies two conditions of the operator endomorphism type: the __C__โ€ and the __B__โ€condition.

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In this paper a su cient condition for a cone of polynomials to be Hurwitz is established. Such condition is a matrix inequality, which gives a simple algebraic test for the stability of rays of polynomials. As an application to stable open-loop systems, a cone of gains c such that the function u =