On the representation of a class of contractive matrix-valued functions
โ Scribed by Elsa Cortina; Carlos E D'Attellis
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 682 KB
- Volume
- 101
- Category
- Article
- ISSN
- 0022-247X
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
We show that every matrix valued generalized Nevanlinna function can be represented w a u-resolvent of a certain selfadjoint relation acting in a Pontryagin space. The negative index of this Pontryagin space may be larger than the number of negative squares of the given function. The minimal index
In the study of the irreducible representations of the unitary group U(n), one encounters a class of polynomials defined on n 2 indeterminates z ij , 1 i, j n, which may be arranged into an n\_n matrix array Z=(z ij ). These polynomials are indexed by double Gelfand patterns, or equivalently, by pai