We give a different proof of Power'.,; several variables generalization o[" the wellknown Kronecker's result on tinitc rank Hankel matrices. This also leads to ~,, formula for the rank of a small Hankel operator on polydisk in terms of a certain degree of its rational symbol. ~.
The inverse spectral problem for finite-rank Hankel operators
β Scribed by E. V. Abakumov
- Publisher
- Springer US
- Year
- 1997
- Tongue
- English
- Weight
- 482 KB
- Volume
- 85
- Category
- Article
- ISSN
- 1573-8795
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π SIMILAR VOLUMES
The goal of the paper is a generalized inversion of finite rank Hankel operators and Hankel or Toeplitz operators with block matrices having finitely many rows. To attain it a left coprime fractional factorization of a strictly proper rational matrix function and the Bezout equation are used. Genera
We consider some inverse spectral problems associated with the singular Sturm-Liouville equation . . , which is obtained by separation of variables in the 3D radial SchrΓΆdinger equation. One approach to such problems involves the use of almost isospectral transformations, by means of which a reduct