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University of Warsaw: Warsaw, PL

1983-10-01 to present | Professor (Faculty of Mathematics, Informatics and Mechanics)
Employment
Source: Self-asserted source
Witold Marciszewski

Works (50 of 55)

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The Josefson–Nissenzweig theorem and filters on $$\omega $$

Archive for Mathematical Logic
2024-11 | Journal article
Part of ISSN: 0933-5846
Part of ISSN: 1432-0665
Contributors: Witold Marciszewski; Damian Sobota
Source: Self-asserted source
Witold Marciszewski

On complemented copies of the space c0 in spaces Cp(X × Y)

Israel Journal of Mathematics
2022 | Journal article | Author
SOURCE-WORK-ID:

6355274a4097073b80d8fbad

Contributors: Jerzy Kąkol; Lyubomyr Zdomskyy; Damian Sobota; Witold Marciszewski
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National Information Processing Institute

A countable dense homogeneous topological vector space is a Baire space

Proceedings of the American Mathematical Society
2021 | Journal article | Author
SOURCE-WORK-ID:

6075fb6e2467f042d05d102e

Contributors: Mikołaj Krupski; Tadeusz Dobrowolski; Witold Marciszewski
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National Information Processing Institute

On two problems concerning Eberlein compacta

Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas
2021-07 | Journal article
Contributors: Witold Marciszewski
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Crossref
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Preferred source (of 2)‎

Sailing over three problems of Koszmider

JOURNAL OF FUNCTIONAL ANALYSIS
2020 | Journal article | Author
SOURCE-WORK-ID:

5ee6a7bfad49b34b21629478

Contributors: Félix Cabello Sánchez; Grzegorz Plebanek; Alberto Salguero-Alarcon; Jesús Castillo; Witold Marciszewski
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National Information Processing Institute
grade
Preferred source (of 2)‎

Twisted sums of c0 and C(K)-spaces: A solution to the CCKY problem

ADVANCES IN MATHEMATICS
2020 | Journal article | Author
SOURCE-WORK-ID:

5ee6a700ad49b34b21629475

Contributors: Grzegorz Plebanek; Antonio Avilés; Witold Marciszewski
Source: check_circle
National Information Processing Institute

On uniformly continuous maps between function spaces

Fundamenta Mathematicae
2019 | Journal article | Author
SOURCE-WORK-ID:

5e71938f46e0fb0001d2c936

Contributors: Mikołaj Krupski; Witold Marciszewski; Rafał Górak
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National Information Processing Institute

Extension operators and twisted sums of $c_0$ and $C(K$) spaces

Journal of Functional Analysis
2018 | Journal article | Author
SOURCE-WORK-ID:

5e71813846e0fb0001d05266

Contributors: Grzegorz Plebanek; Witold Marciszewski
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National Information Processing Institute

On the weak and pointwise topologies in function spaces II

Journal of Mathematical Analysis and Applications
2017 | Journal article | Author
SOURCE-WORK-ID:

5e71775d46e0fb0001cec8da

Contributors: Mikołaj Krupski; Witold Marciszewski
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National Information Processing Institute

A metrizable $X$ with $C_p (X)$ not homeomorphic to $C_ p (X)\times C_p (X)$

Israel Journal of Mathematics
2016 | Journal article | Author
SOURCE-WORK-ID:

5e71655146e0fb0001cc7516

Contributors: Mikołaj Krupski; Witold Marciszewski
Source: check_circle
National Information Processing Institute

Extension operators on balls and on spaces of finite sets

Studia Mathematica
2015 | Journal article | Author
SOURCE-WORK-ID:

5e7148bb46e0fb0001c81953

Contributors: Witold Marciszewski; Antonio Aviles
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National Information Processing Institute

Networks for the weak topology of Banach and Fréchet spaces

Journal of Mathematical Analysis and Applications
2015 | Journal article | Author
SOURCE-WORK-ID:

5e7148bb46e0fb0001c8194f

Contributors: Wieslaw Kubis; Jerzy Kąkol; Saak Gabriyelyan; Witold Marciszewski
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National Information Processing Institute

On Borel structures in the Banach space $C(\beta\omega)$

Journal of Functional Analysis
2014 | Journal article | Author
SOURCE-WORK-ID:

5e7127dd46e0fb0001c1db35

Contributors: Grzegorz Plebanek; Witold Marciszewski
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National Information Processing Institute

On Borel almost disjoint families

Monatshefte für Mathematik
2012 | Journal article | Author
SOURCE-WORK-ID:

5e7110fe46e0fb0001bbf902

Contributors: Roman Pol; Witold Marciszewski
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National Information Processing Institute

On measures on Rosenthal compacta

Journal of Mathematical Analysis and Applications
2012 | Journal article | Author
SOURCE-WORK-ID:

5e710ca046e0fb0001bb068d

Contributors: Grzegorz Plebanek; Witold Marciszewski
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National Information Processing Institute

Some remarks on universality properties of $l_{infty}/c_0$

Colloquium Mathematicum
2012 | Journal article | Author
SOURCE-WORK-ID:

5e71110146e0fb0001bbf97e

Contributors: Mikołaj Krupski; Witold Marciszewski
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National Information Processing Institute

On Corson compacta and embeddings of $C(K)$ spaces

Proceedings of the American Mathematical Society
2010 | Journal article | Author
SOURCE-WORK-ID:

5e70f87c46e0fb0001b3926d

Contributors: Grzegorz Plebanek; Witold Marciszewski
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National Information Processing Institute

On some problems concerning Borel structures in function spaces

Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales - Serie A: Matematicas
2010 | Journal article | Author
SOURCE-WORK-ID:

5e70f88146e0fb0001b39487

Contributors: Roman Pol; Witold Marciszewski
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National Information Processing Institute

On Banach spaces whose norm-open sets are F<sub>Σ</sub>-sets in the weak topology

Journal of Mathematical Analysis and Applications
2009 | Journal article | Author
SOURCE-WORK-ID:

5e70f85946e0fb0001b384ee

Contributors: Roman Pol; Witold Marciszewski
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National Information Processing Institute

Remarks on the set of G<sub>δ</sub>-points in Eberlein and Corson compact spaces

Topology and its Applications
2009 | Journal article | Author
SOURCE-WORK-ID:

5e70f85946e0fb0001b384f0

Contributors: Adam Krawczyk; Henryk Michalewski; Witold Marciszewski
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National Information Processing Institute

Covering a Polish group by translates of a nowhere dense set

Topology and its Applications
2008 | Journal article | Author
SOURCE-WORK-ID:

5e70f7f746e0fb0001b35e31

Contributors: Tadeusz Dobrowolski; Witold Marciszewski
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National Information Processing Institute

Modifications of the double arrow space and related Banach spaces $C(K)$

Studia Mathematica
2008 | Journal article | Author
SOURCE-WORK-ID:

5e70f7f746e0fb0001b35e30

Contributors: Witold Marciszewski
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National Information Processing Institute

On scattered Eberlein compact spaces

Israel Journal of Mathematics
2007 | Journal article | Author
SOURCE-WORK-ID:

5e70f79046e0fb0001b34466

Contributors: M. Bell; Witold Marciszewski
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National Information Processing Institute

Distance to spaces of continuous functions

Topology and its Applications
2006 | Journal article | Author
SOURCE-WORK-ID:

5e70f74a46e0fb0001b32a25

Contributors: Matias Raja; Bernardo Cascales; Witold Marciszewski
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National Information Processing Institute

Universal spaces for classes of scattered Eberlein compact spaces

Journal of Symbolic Logic
2006 | Journal article | Author
SOURCE-WORK-ID:

5e70f74946e0fb0001b32a1e

Contributors: Bell Murray; Witold Marciszewski
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National Information Processing Institute

Function spaces on t-Corson compacta and tightness of polyadic spaces

Czechoslovak Mathematical Journal
2004 | Journal article | Author
SOURCE-WORK-ID:

5e70f6bb46e0fb0001b2ef3b

Contributors: M. Bell; Witold Marciszewski
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National Information Processing Institute

A function space Cp(X) without a condensation onto a $sigma$-compact space

Proceedings of the American Mathematical Society
2003 | Journal article | Author
SOURCE-WORK-ID:

5e70f64846e0fb0001b2d504

Contributors: Witold Marciszewski
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National Information Processing Institute

On Banach spaces C(K) isomorphic to $c_0 (\Gamma)$

Studia Mathematica
2003 | Journal article | Author
SOURCE-WORK-ID:

5e70f64846e0fb0001b2d505

Contributors: Witold Marciszewski
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National Information Processing Institute

Failure of the Factor Theorem for Borel pre-Hilbert spaces

Fundamenta Mathematicae
2002 | Journal article | Author
SOURCE-WORK-ID:

5e70f5fa46e0fb0001b2c00b

Contributors: T Dobrowolski; Witold Marciszewski
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National Information Processing Institute

On properties of metrizable spaces $X$ preserved by $t$-equivalence

Mathematika
2000 | Journal article | Author
SOURCE-WORK-ID:

5e71339146e0fb0001c4320a

Contributors: Witold Marciszewski
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National Information Processing Institute

$P$-filters and hereditary Baire function spaces

Topology and its Applications
1998 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c43201

Contributors: Witold Marciszewski
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National Information Processing Institute

An example of $t^\ast_p$-equivalent spaces which are not $t_p$-equivalent

Topology and its Applications
1998 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c431fe

Contributors: Jan van Mill; Witold Marciszewski
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National Information Processing Institute

Extending open families in nonnmetric spaces and an application to overlays

Glasnik Matematicki
1998 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c43206

Contributors: Tadeusz Dobrowolski; Rolando Jim\'enez; Witold Marciszewski
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National Information Processing Institute

On van Mill's example of a normed $X$ with $X\not\approx X\times\bf R$

Proceedings of the American Mathematical Society
1998 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c431fc

Contributors: Witold Marciszewski
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National Information Processing Institute

A function space $C_p(X)$ not linearly homeomorphic to $C_p(X)\times \bold R$

Fundamenta Mathematicae
1997 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c431dc

Contributors: Witold Marciszewski
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National Information Processing Institute

Absolute Borel sets and function spaces

Transactions of the American Mathematical Society
1997 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c431d7

Contributors: Witold Marciszewski; Jan Pelant
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National Information Processing Institute

On hereditary Baire products

Bulletin of the Polish Academy of Sciences. Mathematics
1997 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c431f5

Contributors: Witold Marciszewski
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National Information Processing Institute

On topological embeddings of linear metric spaces

Mathematische Annalen
1997 | Journal article | Author
SOURCE-WORK-ID:

5e71338e46e0fb0001c43187

Contributors: Witold Marciszewski
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National Information Processing Institute

Rays and the fixed point property in noncompact spaces

Tsukuba Journal of Mathematics
1997 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c431ec

Contributors: Tadeusz Dobrowolski; Witold Marciszewski
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National Information Processing Institute

A countable $X$ having a closed subspace $A$ with $C_p(A)$ not a factor of $C_p(X)$

Topology and its Applications
1995 | Journal article | Author
SOURCE-WORK-ID:

5e71338f46e0fb0001c431bc

Contributors: Witold Marciszewski
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National Information Processing Institute

Classification of function spaces with the pointwise topology determined by a countable dense set

Fundamenta Mathematicae
1995 | Journal article | Author
SOURCE-WORK-ID:

5e71338f46e0fb0001c431c6

Contributors: Tadeusz Dobrowolski; Witold Marciszewski
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National Information Processing Institute

On sequential convergence in weakly compact subsets of Banach spaces

Studia Mathematica
1995 | Journal article | Author
SOURCE-WORK-ID:

5e71338f46e0fb0001c431b1

Contributors: Witold Marciszewski
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National Information Processing Institute

On universal Borel and projective filters

Bulletin of the Polish Academy of Sciences. Mathematics
1995 | Journal article | Author
SOURCE-WORK-ID:

5e71339046e0fb0001c431cf

Contributors: Witold Marciszewski
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National Information Processing Institute

A contribution to the topological classification of the spaces Ср(X)

Fundamenta Mathematicae
1993 | Journal article | Author
SOURCE-WORK-ID:

5e71338f46e0fb0001c431a8

Contributors: Tadeusz Dobrowolski; Witold Marciszewski; Robert Cauty
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National Information Processing Institute

On analytic and coanalytic function spaces $C_p(X)$

Topology and its Applications
1993 | Journal article | Author
SOURCE-WORK-ID:

5e71338f46e0fb0001c431af

Contributors: Witold Marciszewski
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National Information Processing Institute

On properties of Rosenthal compacta

Proceedings of the American Mathematical Society
1992 | Journal article | Author
SOURCE-WORK-ID:

5e71338e46e0fb0001c43197

Contributors: Witold Marciszewski
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National Information Processing Institute

On topological classification of function spaces $C_p(X)$ of low Borel complexity

Transactions of the American Mathematical Society
1991 | Journal article | Author
SOURCE-WORK-ID:

5e71338e46e0fb0001c4317c

Contributors: Jerzy Mogilski; Tadeusz Dobrowolski; Witold Marciszewski
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National Information Processing Institute

Order types, calibres and spread of Corson compacta

Topology and its Applications
1991 | Journal article | Author
SOURCE-WORK-ID:

5e71338e46e0fb0001c4318a

Contributors: Witold Marciszewski
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National Information Processing Institute

Recent classification and characterization results in geometric topology

Bulletin of the American Mathematical Society
1990 | Journal article | Author
SOURCE-WORK-ID:

5e71339346e0fb0001c4329a

Contributors: J. Mogilski; J. van Mill; T. Dobrowolski; J. J. Dijkstra; Witold Marciszewski
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National Information Processing Institute

On a classification of pointwise compact sets of the first Baire class functions

Fundamenta Mathematicae
1989 | Journal article | Author
SOURCE-WORK-ID:

5e71339346e0fb0001c43298

Contributors: Witold Marciszewski
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National Information Processing Institute
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