Bhattacharjee, Monojit and Sarkar, Jaydeb (2016) Operator positivity and analytic models of commuting tuples of operators. In: STUDIA MATHEMATICA, 232 (2). pp. 155-171.
Full text not available from this repository. (Request a copy)Abstract
We study analytic models of operators of class C-.0 with natural positivity assumptions. In particular, we prove that for an m-hypercontraction T is an element of C-.0 on a Hilbert space H, there exist Hilbert spaces epsilon and epsilon(*) and a partially isometric multiplier theta is an element of M(H-2 (epsilon), A(m)(2) (epsilon(*))) such that H congruent to Q(theta) - A(m)(2) (epsilon*) circle minus theta H-2(epsilon) and P-Q theta M-z vertical bar Q(theta), where A(m)(2) (epsilon(*)) is the epsilon(*)-valued weighted Bergman space and H-2 (epsilon) is the E-valued Hardy space over the unit disc a We then proceed to study analytic models for doubly commuting n-tuples of operators and investigate their applications to joint shift co-invariant subspaces of reproducing kernel Hilbert spaces over the polydisc. In particular, we completely analyze doubly commuting quotient modules of a large class of reproducing kernel Hilbert modules, in the sense of Arazy and Englis, over the unit polydisc D-n.
| Item Type: | Journal Article |
|---|---|
| Publication: | STUDIA MATHEMATICA |
| Publisher: | POLISH ACAD SCIENCES INST MATHEMATICS-IMPAN |
| Additional Information: | ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND |
| Keywords: | weighted Bergman spaces; hypercontractions; multipliers; reproducing kernel Hilbert spaces; invariant subspaces |
| Department/Centre: | Division of Chemical Sciences > Materials Research Centre |
| Date Deposited: | 10 Jun 2016 05:28 |
| Last Modified: | 10 Jun 2016 05:28 |
| URI: | http://eprints.iisc.ac.in/id/eprint/53991 |
Actions (login required)
 |
View Item |
