N.V. Zhivkov
N.V. Zhivkov
Professor, Institute of Mathematics and Informatics, Bulgarian Academy of Sciences
Verified email at math.bas.bg
TitleCited byYear
A CHARACTERIZATION OF ASPLUND SPACES WITH THE HELP OF LOCAL EPSILON-SUPPORTS OF EKELAND AND LEBOURG
M Fabian, NV Zhivkov
DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE 38 (6), 671-674, 1985
591985
Well-posed constrained optimization problems in metric spaces
JP Revalski, NV Zhivkov
Journal of optimization theory and applications 76 (1), 145-163, 1993
231993
Metric projections and anti-projections in strictly convex normed spaces
NV Zhivkov
DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE 31 (4), 369-372, 1978
171978
Compacta with dense ambiguous loci of metric projections and antiprojections
NV Zhivkov
Proceedings of the American Mathematical Society 123 (11), 3403-3411, 1995
161995
Generic Gâteaux differentiability of directionally differentiable mappings
NV Zhivkov
Rev. Roum. Math. Pure. Appl. 32 (2), 179, 1987
161987
Compactly uniformly convex spaces and property (β) of Rolewicz
SJ Dilworth, D Kutzarova, NL Randrianarivony, JP Revalski, NV Zhivkov
Journal of Mathematical Analysis and Applications 402 (1), 297-307, 2013
112013
Continuity and non-multi-valuedness properties of metric projections and anti-projections
NV Zhivkov
Serdica Bulgaricae Mathematicae Publications 8 (4), 378, 1982
101982
A characterization of reflexive spaces by means of continuous approximate selections for metric projections
NV Zhivkov
Journal of approximation theory 56 (1), 59-71, 1989
91989
Densely two-valued metric projections in uniformly convex Banach spaces
NV Zhivkov
Set-Valued Analysis 3 (2), 195-209, 1995
71995
Generic Gâteaux differentiability of locally Lipschitzian functions
NV Zhivkov
Constructive Function Theory 81, 590-594, 1981
71981
Formalizing the Optimization Problem in Long-Term Capability Planning
T Tagarev, T Tsachev, N Zhivkov
Information & Security: An International Journal 23 (1), 2009
62009
Best approximation problems in compactly uniformly rotund spaces
JP Revalski, NV Zhivkov
J. Convex Anal 19 (4), 1153-1166, 2012
52012
Lenses and asymptotic midpoint uniform convexity
SJ Dilworth, D Kutzarova, NL Randrianarivony, JP Revalski, NV Zhivkov
Journal of Mathematical Analysis and Applications 436 (2), 810-821, 2016
42016
PLANE POLYGONAL-APPROXIMATION OF BOUNDED CONVEX-SETS
NV Zhivkov
DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE 35 (12), 1631-1634, 1982
41982
Examples of plane compacta with dense ambiguous loci
NV Zhivkov
Dokladi na Bulgarskata Akademia na Naukite 46 (1), 27-30, 1993
31993
Properties of typical bounded closed convex sets in Hilbert space
FS De Blasi, NV Zhivkov
Abstract and Applied Analysis 4 (2005), 423-436, 2005
22005
The number of nearest and farthest points to a compactum in Euclidean space
FS de Blasi, NV Zhivkov
Israel Journal of Mathematics 130 (1), 347-363, 2002
22002
On two-loci of metric projections
FS De Blasi, NV Zhivkov
Archiv der Mathematik 73 (1), 42-49, 1999
21999
Peano continua generating densely multivalued metric projections
NV Zhivkov
Rend. Sem. Mat. Univ. Politec. Torino 52 (4), 335-346, 1994
21994
Small sets in best approximation theory
JP Revalski, NV Zhivkov
Journal of Global Optimization 50 (1), 77-91, 2011
12011
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Articles 1–20