Slavik RabanovichDepartment of Functional AnalysisInstitute of Mathematics National Academy of Science of Ukraine 3, Tereshchenkivs'ka str. Kiev, 01601, Ukraine Phone +38-044- 234-61-53 |
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Representation of a matrix (or a bounded operator) by a linear
combination (+1,"+"or "-" 1, integer, positive, real, complex coefficients)
of idempotents or orthoprojections.
Representation of a matrix as a product of unitary matrices with a fixed spectrum.
Applications of a sum and a product of projections in Numerical Analysis, Knots Theory,
Functional Analysis and so on.
An inverse eigenvalue problem: finding the possible
spectrum of C=A+B for given spectra of A and B.
Complete sets of unitary invariants of a matrix. Invariant Theory and Representations.