Research Output per year

## Fingerprint Weighted list of dominant concepts in the researcher's publications (titles and abstracts).

Matrix Function
Mathematics

Numerical Range
Mathematics

Almost Periodic
Mathematics

Factorization
Mathematics

Toeplitz Operator
Mathematics

Triangular matrix
Mathematics

Singular Integral Operator
Mathematics

Periodic Functions
Mathematics

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## Research Output 1975 2019

## Quantitative results on continuity of the spectral factorization mapping

Ephremidze, L., Shargorodsky, E. & Spitkovsky, I., Jan 1 2019, (Accepted/In press) In : Journal of the London Mathematical Society.Research output: Contribution to journal › Article

Spectral Factorization

Matrix Function

Logarithm

Positive definite

Analytic function

## Singularities of base polynomials and Gau–Wu numbers

Camenga, K. A., Deaett, L., Rault, P. X., Sendova, T., Spitkovsky, I. & Yates, R. B. J., Nov 15 2019, In : Linear Algebra and Its Applications. 581, p. 112-127 16 p.Research output: Contribution to journal › Article

Polynomial Basis

Polynomials

Singularity

Curve

Irreducible Matrix

## A Distance Formula Related to a Family of Projections Orthogonal to Their Symmetries

Spitkovsky, I., Jan 1 2018,*Operator Theory: Advances and Applications.*Springer International Publishing, p. 371-376 6 p. (Operator Theory: Advances and Applications; vol. 267).

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Distance formula

Orthogonal Projection

Symmetry

Involution

Hilbert space

## A note on Anderson's theorem in the infinite-dimensional setting

Birbonshi, R., Spitkovsky, I. & Srivastava, P. D., May 1 2018, In : Journal of Mathematical Analysis and Applications. 461, 1, p. 349-353 5 p.Research output: Contribution to journal › Article

Normal Operator

Numerical Range

Compact Operator

Unit circle

Intersect

## A Note on the Factorization of Some Structured Matrix Functions

Spitkovsky, I. & Voronin, A. F., Jun 1 2018, In : Integral Equations and Operator Theory. 90, 3, 39.Research output: Contribution to journal › Article

Structured Matrices

Matrix Function

Factorization

Complex conjugate

Schur Complement