Personal information

Websites & social links

http://www.ncl.ac.uk/maths/staff/profile/zinaidalykova.html/#background

Other IDs

ResearcherID: E-3987-2017
Scopus Author ID: 8944415800
ResearcherID: E-3987-2017

Countries

United Kingdom

Activities

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Employment (2)

Newcastle University: Newcastle upon Tyne, Newcastle upon Tyne, GB

1999-01 to present | Reader in Pure Mathematics (Mathematics and Statistics)
Employment
Source: Self-asserted source
Zinaida Lykova

Newcastle University: Newcastle upon Tyne, Tyne and Wear, GB

1999-01-01 to present | Reader in Pure Mathematics (MSP-Pure)
Employment
Source: check_circle
Newcastle University via ORCID Member Portal

Education and qualifications (1)

Lomonosov Moscow State University, Faculty of Mechanics and Mathematics: Moscow, RU

1988 | Candidate Nauk (=PhD) (Function Theory and Functional Analysis)
Education
Source: Self-asserted source
Zinaida Lykova

Works (45)

On the operators with numerical range in an ellipse

Journal of Functional Analysis
2024-10 | Journal article
DOI: 10.1016/j.jfa.2024.110556
Part of ISSN: 0022-1236
Contributors: Jim Agler; Zinaida A. Lykova; Nicholas Young
Source: Self-asserted source
Zinaida Lykova

Function theory in the bfd-norm on an elliptical region

Journal of Mathematical Analysis and Applications
2024-08 | Journal article
DOI: 10.1016/j.jmaa.2024.128732
Part of ISSN: 0022-247X
Contributors: Jim Agler; Zinaida A. Lykova; N.J. Young
Source: Self-asserted source
Zinaida Lykova

A Hilbert space approach to singularities of functions

Journal of Functional Analysis
2023-03 | Journal article
DOI: 10.1016/j.jfa.2022.109826
Part of ISSN: 0022-1236
Contributors: Jim Agler; Zinaida A. Lykova; Nicholas Young
Source: Self-asserted source
Zinaida Lykova

A Schwarz Lemma for the Pentablock

The Journal of Geometric Analysis
2023-02 | Journal article
DOI: 10.1007/s12220-022-01107-7
Contributors: Nujood M. Alshehri; Zinaida A. Lykova
Source: check_circle
Crossref

Rational tetra-inner functions and the special variety of the tetrablock

Journal of Mathematical Analysis and Applications
2022-02 | Journal article
DOI: 10.1016/j.jmaa.2021.125534
Contributors: Omar M.O. Alsalhi; Zinaida A. Lykova
Source: check_circle
Crossref

Exterior products of operators and superoptimal analytic approximation

Transactions of the London Mathematical Society
2021-12 | Journal article
DOI: 10.1112/tlm3.12035
Part of ISSN: 2052-4986
Part of ISSN: 2052-4986
Source: Self-asserted source
Zinaida Lykova

Interpolation by holomorphic maps from the disc to the tetrablock

Journal of Mathematical Analysis and Applications
2021-06 | Journal article
DOI: 10.1016/j.jmaa.2021.124951
Contributors: Hadi O. Alshammari; Zinaida A. Lykova
Source: check_circle
Crossref

Exterior Powers and Pointwise Creation Operators

Complex Analysis and Operator Theory
2021-03 | Journal article
DOI: 10.1007/s11785-020-01074-3
Contributors: Dimitrios Chiotis; Zinaida A. Lykova; N. J. Young
Source: check_circle
Crossref

Intrinsic Directions, Orthogonality and Distinguished Geodesics in the Symmetrized Bidisc

Journal of Geometric Analysis
2021-01-19 | Journal article
DOI: https://doi.org/10.1007/s12220-020-00582-0
Source: Self-asserted source
Zinaida Lykova

Analytic Interpolation into the Tetrablock and a μ-synthesis Problem

Interpolation and Realization Theory with Applications to Control Theory
2019 | Book chapter
DOI: 10.1007/978-3-030-11614-9_10
Part of ISBN: 9783030116132
Part of ISBN: 9783030116149
Part of ISSN: 0255-0156
Part of ISSN: 2296-4878
Source: Self-asserted source
Zinaida Lykova

Geodesics, Retracts, and the Norm-Preserving Extension Property in the Symmetrized Bidisc

AMS
2019-02-22 | Book
DOI: https://doi.org/10.1090/memo/1242
Source: Self-asserted source
Zinaida Lykova

A Geometric Characterization of the Symmetrized Bidisc

Journal of Mathematical Analysis and Applications
2019-01 | Journal article
DOI: http://doi.org/10.1016/j.jmaa.2019.01.027
Source: Self-asserted source
Zinaida Lykova
grade
Preferred source (of 2)‎

Carathéodory extremal functions on the symmetrized bidisc

Operator Theory, Analysis and the State Space Approach
2018-12-31 | Journal article
DOI: https://doi.org/10.1007/978-3-030-04269-1_1
Source: Self-asserted source
Zinaida Lykova
grade
Preferred source (of 2)‎

Characterizations of Some Domains via Carathéodory Extremals

The Journal of Geometric Analysis
2018-08-21 | Journal article
DOI: https://doi.org/10.1007/s12220-018-0059-6
Source: Self-asserted source
Zinaida Lykova
grade
Preferred source (of 2)‎

Algebraic and geometric aspects of rational Γ-inner functions

Advances in Mathematics
2018-04 | Journal article
DOI: 10.1016/j.aim.2017.12.018
Contributors: Jim Agler; Zinaida A. Lykova; N.J. Young
Source: check_circle
Crossref
grade
Preferred source (of 2)‎

Finite Blaschke products and the construction of rational Γ-inner functions

Journal of Mathematical Analysis and Applications
2017-03 | Journal article
DOI: 10.1016/j.jmaa.2016.10.035
Contributors: Jim Agler; Zinaida A. Lykova; N.J. Young
Source: check_circle
Crossref
grade
Preferred source (of 3)‎

A rich structure related to the construction of analytic matrix functions

Journal of Functional Analysis
2017-02 | Journal article
DOI: 10.1016/j.jfa.2016.11.013
Contributors: D.C. Brown; Z.A. Lykova; N.J. Young
Source: check_circle
Crossref
grade
Preferred source (of 3)‎

3-Extremal Holomorphic Maps and the Symmetrized Bidisc

Journal of Geometric Analysis
2015 | Journal article
DOI: 10.1007/s12220-014-9504-3
WOSUID:

WOS:000356515800029
Contributors: Agler, Jim; Lykova, Zinaida A.; Young, N. J.
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

The complex geometry of a domain related to μ-synthesis

Journal of Mathematical Analysis and Applications
2015-02 | Journal article
DOI: 10.1016/j.jmaa.2014.08.051
Contributors: Jim Agler; Zinaida A. Lykova; N.J. Young
Source: check_circle
Crossref
grade
Preferred source (of 3)‎

A CASE OF mu-SYNTHESIS AS A QUADRATIC SEMIDEFINITE PROGRAM

Siam Journal on Control and Optimization
2013 | Journal article
DOI: 10.1137/120873248
WOSUID:

WOS:000321042300026
Contributors: Agler, Jim; Lykova, Zinaida A.; Young, N. J.
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

Extremal holomorphic maps and the symmetrized bidisc

Proceedings of the London Mathematical Society
2013 | Journal article
DOI: 10.1112/plms/pds049
WOSUID:

WOS:000318573700002
Contributors: Agler, Jim; Lykova, Zinaida A.; Young, N. J.
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

PROJECTIVITY OF BANACH AND C*-ALGEBRAS OF CONTINUOUS FIELDS

Quarterly Journal of Mathematics
2013 | Journal article
DOI: 10.1093/qmath/has005
WOSUID:

WOS:000319431100002
Contributors: Cushing, David; Lykova, Zinaida A.
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

Pseudo-Taylor expansions and the Caratheodory-Fejer problem

Journal of Mathematical Analysis and Applications
2012 | Journal article
DOI: 10.1016/j.jmaa.2011.08.001
WOSUID:

WOS:000295563300028
Contributors: Agler, Jim; Lykova, Zinaida A.; Young, N. J.
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

The higher-dimensional amenability of tensor products of Banach algebras

Journal of Operator Theory
2012 | Journal article
EID:

2-s2.0-84865085492
Contributors: Lykova, Z.A.
Source: Self-asserted source
Zinaida Lykova via Scopus - Elsevier

The boundary Caratheodory-Fejer interpolation problem

Journal of Mathematical Analysis and Applications
2011 | Journal article
DOI: 10.1016/j.jmaa.2011.04.071
WOSUID:

WOS:000291714400013
Contributors: Agler, Jim; Lykova, Zinaida A.; Young, N. J.
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

HOCHSCHILD COHOMOLOGY OF TENSOR PRODUCTS OF TOPOLOGICAL ALGEBRAS

Proceedings of the Edinburgh Mathematical Society
2010 | Journal article
DOI: 10.1017/S0013091508001065
WOSUID:

WOS:000278187600012
Contributors: Lykova, Zinaida A.
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

Cyclic cohomology of certain nuclear Frechet and DF algebras

Central European Journal of Mathematics
2008 | Journal article
DOI: 10.2478/s11533-008-0040-x
WOSUID:

WOS:000258624500008
Contributors: Lykova, Zinaida A.
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

Cyclic cohomology of projective limits of topological algebras

Proceedings of the Edinburgh Mathematical Society
2006 | Journal article
DOI: 10.1017/S0013091504000410
WOSUID:

WOS:000235872500012
Contributors: Lykova, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

Cyclic-type cohomology of strict inductive limits of Frechet algebras

Journal of Pure and Applied Algebra
2006 | Journal article
DOI: 10.1016/j.jpaa.2005.07.014
WOSUID:

WOS:000236446800001
Contributors: Lykova, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

A Kunneth formula in topological homology and its applications to the simplicial cohomology of l(1)(Z(+)(k))

Studia Mathematica
2005 | Journal article
DOI: 10.4064/sm166-1-3
WOSUID:

WOS:000229329100003
Contributors: Gourdeau, F; Lykova, ZA; White, MC
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

The simplicial cohomology of L-1(R-+(k))

Banach Algebras and Their Applications
2004 | Book chapter
WOSUID:

WOS:000225784000009
Contributors: Gourdeau, F; Lykova, ZA; White, MC; Lau, AT; Runde, V
Source: Self-asserted source
Zinaida Lykova via ResearcherID

Relations between the homologies of C*-algebras and their commutative C*-subalgebras

Mathematical Proceedings of the Cambridge Philosophical Society
2002 | Journal article
DOI: 10.1017/S0305004101005497
EID:

2-s2.0-0036335494
Contributors: Lykova, Z.A.
Source: Self-asserted source
Zinaida Lykova via Scopus - Elsevier

Excision in cyclic type homology of Frechet algebras

Bulletin of the London Mathematical Society
2001 | Journal article
DOI: 10.1017/S0024609301007998
WOSUID:

WOS:000168926800005
Contributors: Brodzki, J; Lykova, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

Algebraic and strong splittings of extensions of Banach algebras

Memoirs of the American Mathematical Society
1999 | Journal article
DOI: 10.1090/memo/0656
EID:

2-s2.0-33749593177
Contributors: Bade, W.G.; Dales, H.G.; Lykova, Z.A.
Source: Self-asserted source
Zinaida Lykova via Scopus - Elsevier

Relative cohomology of Banach algebras

Journal of Operator Theory
1999 | Journal article
WOSUID:

WOS:000078739100002
Source: Self-asserted source
Zinaida Lykova
grade
Preferred source (of 2)‎

Examples of Banach algebras over commutative Banach algebras of given homological dimension

Communications in Algebra
1998 | Journal article
DOI: 10.1080/00927879808826239
WOSUID:

WOS:000073639500008
Contributors: Lykova, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

Excision in Banach simplicial and cyclic cohomology

Proceedings of the Edinburgh Mathematical Society
1998 | Journal article
WOSUID:

WOS:000074322000016
Contributors: Lykova, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID

Excision in the cohomology of Banach algebras with coefficients in dual bimodules

Banach Algebras '97
1998 | Journal article
WOSUID:

WOS:000078414400021
Contributors: Lykova, ZA; White, MC; Albrecht, E; Mathieu, M
Source: Self-asserted source
Zinaida Lykova via ResearcherID

CENTRALLY CONTRACTILE C*-ALGEBRAS

Russian Mathematical Surveys
1993 | Journal article
DOI: 10.1070/RM1993v048n02ABEH001027
WOSUID:

WOS:A1993NG81200018
Source: Self-asserted source
Zinaida Lykova
grade
Preferred source (of 3)‎

On the normal version of the simplicial cohomology of operator algebras

Bulletin of the Australian Mathematical Society
1993 | Journal article
DOI: 10.1017/S0004972700015860
EID:

2-s2.0-84971758075
Contributors: Helemskii, A.Y.; Lykova, Z.A.
Source: Self-asserted source
Zinaida Lykova via Scopus - Elsevier

ORDINARY AND CENTRAL AMENABILITY OF C-ASTERISK-ALGEBRAS

Russian Mathematical Surveys
1993 | Journal article
WOSUID:

WOS:A1993NF83400012
Contributors: LYKOVA, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID

On non-zero values of the central homological dimension of C*-algebras

Glasgow Mathematical Journal
1992 | Journal article
DOI: 10.1017/S0017089500008971
EID:

2-s2.0-84976123854
Contributors: Lykova, Z.A.
Source: Self-asserted source
Zinaida Lykova via Scopus - Elsevier

A LOWER ESTIMATE OF THE GLOBAL HOMOLOGICAL DIMENSION OF INFINITE-DIMENSIONAL CCR-ALGEBRAS

Russian Mathematical Surveys
1986 | Journal article
DOI: 10.1070/RM1986v041n01ABEH003229
WOSUID:

WOS:A1986F894800013
Contributors: LYKOVA, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID
grade
Preferred source (of 2)‎

HOMOLOGICAL CHARACTERISTICS OF OPERATOR-ALGEBRAS

Vestnik Moskovskogo Universiteta Seriya 1 Matematika Mekhanika
1986 | Journal article
WOSUID:

WOS:A1986A307900003
Contributors: LYKOVA, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID

CONDITIONS OF PROJECTIVITY FOR BANACH ALGEBRAS OF COMPACT OPERATORS

Vestnik Moskovskogo Universiteta Seriya 1 Matematika Mekhanika
1979 | Journal article
WOSUID:

WOS:A1979HT41600002
Contributors: LYKOVA, ZA
Source: Self-asserted source
Zinaida Lykova via ResearcherID
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