Personal information

Activities

Employment (4)

University of Nebraska Omaha: NE, NE, US

1999 to present (Mathematics)
Employment
Source: Self-asserted source
Valentin Matache

University of Puerto Rico at Mayagüez: Mayagüez, Puerto Rico, US

1998 to 1999 (Mathematics)
Employment
Source: Self-asserted source
Valentin Matache

University of Kansas : Lawrence, KS, US

1994 to 1998 | GTA (Mathematics)
Employment
Source: Self-asserted source
Valentin Matache

University of Timisoara: Timisoara, RU

1986 to 1994 | Assistant Professor (Mathematics)
Employment
Source: Self-asserted source
Valentin Matache

Education and qualifications (2)

University of Kansas: Lawrence, KS, US

1998 to present | PhD (Mathematics)
Education
Source: Self-asserted source
Valentin Matache

University of Timisoara: Timisoara, RO

1994 to present | PhD (Mathematics)
Education
Source: Self-asserted source
Valentin Matache

Professional activities (2)

Universidad Complutense de Madrid: Madrid, Comunidad de Madrid, ES

2016-03 to 2016-06 | Researcher (Mathematics)
Invited position
Source: Self-asserted source
Valentin Matache

University of Hawai'i: HI, HI, US

2006-10 to 2006-11 | Researcher (Mathematics)
Invited position
Source: Self-asserted source
Valentin Matache

Works (30)

Universal translates of composition operators and their adjoints

Rendiconti del Circolo Matematico di Palermo Series 2
2025-02 | Journal article
Contributors: Valentin Matache
Source: check_circle
Crossref

Invariant densities for random continued fractions

Journal of Mathematical Analysis and Applications
2022-08 | Journal article
Contributors: Charlene Kalle; Valentin Matache; Masato Tsujii; Evgeny Verbitskiy
Source: check_circle
Crossref

When is a scaled contraction hypercyclic?

Bollettino dell'Unione Matematica Italiana
2021-06-21 | Journal article
Contributors: Valentin Matache
Source: check_circle
Crossref

Hilbertian Hardy-Sobolev spaces on a half-plane

Journal of Mathematical Analysis and Applications
2020-09 | Journal article
Contributors: José E. Galé; Valentin Matache; Pedro J. Miana; Luis Sánchez-Lajusticia
Source: check_circle
Crossref

Composition operators similar to contractions

Acta Scientiarum Mathematicarum
2019 | Journal article
Contributors: Valentin Matache
Source: check_circle
Crossref

Weighted composition operators on the Hilbert Hardy space of a half-plane

Complex Variables and Elliptic Equations
2019 | Journal article
EID:

2-s2.0-85066841332

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Problems on weighted and unweighted composition operators

Trends in Mathematics
2018 | Book chapter
EID:

2-s2.0-85041708353

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Conjectures on spectra of composition operators and related issues

Advances in Mathematics
2017 | Journal article
EID:

2-s2.0-85033669245

Contributors: Gallardo-Gutiérrez, E.A.; Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Nonminimal cyclic invariant subspaces of hyperbolic composition operators

Contemporary Mathematics
2017 | Book chapter
EID:

2-s2.0-85041742888

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Logical Reduction of Biological Networks to Their Most Determinative Components

Bulletin of Mathematical Biology
2016 | Journal article
EID:

2-s2.0-84978802730

Contributors: Matache, M.T.; Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Invariant subspaces of composition operators

Journal of Operator Theory
2015 | Journal article
EID:

2-s2.0-84925273977

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

On spectra of composition operators

Operators and Matrices
2015 | Journal article
EID:

2-s2.0-84929163418

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Isometric weighted composition operators

New York Journal of Mathematics
2014 | Journal article
EID:

2-s2.0-84905667858

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Composition Operators on a Class of Analytic Function Spaces Related to Brennan's Conjecture

Complex Analysis and Operator Theory
2012 | Journal article
EID:

2-s2.0-84856214956

Contributors: Matache, V.; Smith, W.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Numerical ranges of composition operators with inner symbols

Rocky Mountain Journal of Mathematics
2012 | Journal article
EID:

2-s2.0-84872015404

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Composition operators whose symbols have orthogonal powers

Houston Journal of Mathematics
2011 | Journal article
EID:

2-s2.0-84055213043

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

When is the numerical range of a nilpotent matrix circular?

Applied Mathematics and Computation
2010 | Journal article
EID:

2-s2.0-76749103349

Contributors: Matache, V.; Matache, M.T.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

On the sensitivity to noise of a Boolean function

Journal of Mathematical Physics
2009 | Journal article
EID:

2-s2.0-70350716044

Contributors: Matache, M.T.; Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Weighted composition operators on H <sup>2</sup> and applications

Complex Analysis and Operator Theory
2008 | Journal article
EID:

2-s2.0-43449134407

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Operator self-similar processes on Banach spaces

Journal of Applied Mathematics and Stochastic Analysis
2006 | Journal article
EID:

2-s2.0-33745321910

Contributors: Matache, M.T.; Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

A fixed point theorem for analytic functions

Fixed Point Theory and Applications
2005 | Journal article
EID:

2-s2.0-34547566451

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

A short proof of a characterization of inner functions in terms of the composition operators they induce

Rocky Mountain Journal of Mathematics
2005 | Journal article
EID:

2-s2.0-33645142410

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Convergent sequences of composition operators

Journal of Mathematical Analysis and Applications
2005 | Journal article
EID:

2-s2.0-15844421229

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

On convergence to the Denjoy-wolff point

Illinois Journal of Mathematics
2005 | Journal article
EID:

2-s2.0-15844420056

Contributors: Bourdon, P.S.; Matache, V.; Shapiro, J.H.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Queueing systems for multiple FBM-based traffic models

ANZIAM Journal
2005 | Journal article
EID:

2-s2.0-33747287123

Contributors: Matache, M.T.; Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

A Necessary and Sufficient Condition for Minimizing a Convex Fréchet Differentiable Function on a Certain Hyperplane

Journal of Mathematical Analysis and Applications
2001 | Journal article
EID:

2-s2.0-0035217715

Contributors: Li, H.-L.; Liu, Y.-H.; Matache, V.; Yu, P.-L.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Composition operators and a pull-back measure formula

Integral Equations and Operator Theory
2001 | Journal article
EID:

2-s2.0-0035292573

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Numerical ranges of composition operators

Linear Algebra and Its Applications
2001 | Journal article
EID:

2-s2.0-0035400206

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Composition operators on hardy spaces of a half-plane

Proceedings of the American Mathematical Society
1999 | Journal article
EID:

2-s2.0-22644450359

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

On the minimal invariant subspaces of the hyperbolic composition operator

Proceedings of the American Mathematical Society
1993 | Journal article
EID:

2-s2.0-84966212692

Contributors: Matache, V.
Source: Self-asserted source
Valentin Matache via Scopus - Elsevier

Peer review (1 review for 1 publication/grant)

Review activity for Acta Mathematica Scientia. (1)