TOPOLOGY SEMINAR
Mathematical Institute, University of Wrocław.
NEW WEBPAGE OF THE SEMINAR IS HERE
2016/2017
 Grzegorz Plebanek
On Boolean images of connected spaces.
(October 2016)
2015/2016
 Włodzimierz Charatonik
On spaces homeomorphic to its hiperspaces.
(June 2016)
 Wiesław Kubiś (Czech Academy of Sciences)
Fraisse theory and homogeneity of the Cantor set.
(May 2016)
 Gonzalo Martinez Cervantes (Murcia)
Weakly RadonNikodým compact spaces.
(May 2016)
 Piotr Oprocha (Kraków)
On periodicity of pairs.
(May 2016)
 Magdalena Nowak (Kielce)
Counterexamples for IFSattractors.
(April 2016)
 Aleksandra Kwiatkowska (Bonn)
Universal minimal flows and Ramsey theory.
series of lectures.
(April 2016)
 Maciej Pietroń (Wrocław)
On a stronger form of countable dense homogeneity of the plane.
Joint results with Michał Morayne.
(March 2016)
 Piotr Drygier (University of Wrocław)
Compactifications of integers and c_0complementedness.
Recent results of Piotr and Grzegorz Plebanek.
(February 2016)
 Damian Osajda (University of Wrocław)
Gromov boundaries with Loewner combinatorial property.
(January 2016)
 Daria Michalik (Warsaw)
Uniqueness of factorization for cartesian products.
(January 2016)
 Alicja Samulewicz (Gliwice)
Sets of accumulation points of series in normed spaces.
(January 2016)
 Aleksandra Kwiatkowska (Bonn)
Minimal universal flow of the group of homeomorphisms of Lelek fan.
(joint work with Dana Bartosova)
(December 2015)
 Marcin Sabok (McGill University, Montreal)
Complexity of topological conjugacy of minimal Toeplitz subshifts.
(joint work with Todor Tsankov)
(December 2015)
 Grzegorz Plebanek (Wrocław)
On topological properties reflected by small continuous images.
(joint work with Menachem Magidor)
(December 2015)
 Paweł Krupski (Wrocław)
Separation properties of homogenuous continua.
(October 2015)
 Tomasz Zuchowski (Wrocław)
Universal Banach space induced by a nonuniversal Boolean algebra.
(results of Brech and Koszmider)
(October 2015)
 Antonio Aviles (Murcia)
RadonNikodym compact spaces.
(joint work with P. Koszmider)
(October 2015)
2014/2015
 Brice Mbombo (Sao Paulo University)
Ramsey properties of finitely dimensional normed spaces.
(joint work with J. LopezAbad).
(June 2015)
 Michał Korch (University of Warsaw)
The class of perfectly null sets and its transitive version.
(joint work with T. Weiss).
 Oleg Gutik (Lvov National University)
Compactlike semitopological and topological semigroups
(May 2015)
 Taras Banakh (Lvov National University)
Some generalizations of kspaces with applications to topological groups and function spaces,
(May 2015)
 Piotr Drygier (University of Wrocław)
c_0 complemented in Banach spaces
(May 2015)
 Grzegorz Plebanek (University of Wrocław)
Sequential properties of weak topology in Banach spaces.
(May 2015)
 Konrad Królicki (University of Wrocław)
Coanalytic completeness of certain families of continua in cubes.
(April 2015)
 Konrad Królicki (University of Wrocław)
On certain characterizaction of pseudoarc.
(April 2015)
 Piotr BorodulinNadzieja (University of Wrocław)
Measures on Suslinean spaces.
(March 2015)
 Michał Morayne (Wrocław University of Technology)
Certain analogon of AlexandrovHausdorff theorem for semigroup of functions.
(March 2015)
 Mikołaj Krupski (University of Warsaw)
Topological dimension of a space is determined by the pointwise topology
of its function space.
(March 2015)
 Krzysztof Omiljanowski (University of Wrocław)
An answer to a question of Kolmogorov
(based on paper by Balka, Elekes, Mathe).
(March 2015)
 Michał Morayne (Wrocław University of Technology)
BergmanShelah ordering on semigroups; on certain algebraic version of Continuum Hypothesis.
(March 2015)
 Witold Marciszewski (University of Warsaw)
On compact metrizable space X for which C_p(X) is not homeomorphic to its square
recent results joint with Mikołaj Krupski
(February 2015)
 Piotr Drygier (University of Wrocław)
Growth of omega supporting a strictly positive measure.
(January 2015)
 Grzegorz Plebanek (University of Wrocław)
Normal measure on connected compact space.
(January 2015)
 Ahmad Farhat (University of Wrocław)
Application to Boolean algebras of results on continuous images of ordered compacta.
(December 2014)
 Szymon Żeberski (Technical University, Wrocław)
Midpointfree sets and their analogies in certain topological groups.
(December 2014)
 Krzysztof Omiljanowski (University of Wrocław)
Homogeneous continua that are not separated by arcs.
(December 2014)
 Barnabas Farkas (Kurt Goedel Research Center, Vienna)
Large independent sets in small graphs.
Recent results joint with Lyubomir Zdomskyy.
(November 2014)
 Jan Dobrowolski (University of Wrocław)
Topologies induced by group actions.
(November 2014)
 Piotr Koszmider (Polish Academy of Sciences)
The elusive geometry of l_infty/c_0.
An overview of known results and open problems.
(October 2014)
 Paweł Krupski (University of Wrocław)
Ultrametrics in locally compact spaces.
results obtained with Alexander Bendikov
(October 2014)
 Krzysztof Omiljanowski (University of Wrocław)
Kontinua płaskie rozcinane przez każde swoje podkontinuum.
(October 2014)
 Piotr Zakrzewski (University of Warsaw)
Combinatorial properties of ideals on countable sets: density versus selectivity.
(recent results of A. Kwela and P. Zakrzewski)
(September 2014)
2013/2014
 Alejandro Illanes (UNAM)
Some new results on the pseudoarc.
Veronica Martinez de la Vega (UNAM)
To be announced
(July 2014)
 Grzegorz Plebanek (University of Wrocław)
Tukey orderings in separable Banach spaces.
(June 2014)
 Sergey Antonyan (UNAM, Mexico)
The GromovHausdorff metric and hyperspaces.
(May 2014)
 Michał Ryszard Wójcik
The AronMaestre comb
(May 2014)
 Michał Ryszard Wójcik
Continuity in terms of connectedness for functions on the line.
(April 2014)
 Jarosław Swaczyna (Łódź University of Technology)
On a generalization of iterated function systems.
(recent results of Jarosław and Filip Strobin)
(April 2014)
 Grzegorz Plebanek (University of Wrocław)
Countable tightness in spaces of probability measures.
(recent results of Grzegorz and Damian Sobota)
(April 2014)
 Konrad Królicki (University of Wrocław)
On the homeomorphism groups of Brechner's continua
(recent results of Dijsktra and Hickmann)
(March 2014)
 Piotr Drygier (University of Wrocław)
Convergent convex block subsequence of measures.
(March 2014)
 Piotr Drygier (University of Wrocław)
On complemented embeddings of c_0 in C(K) spaces.
(March 2014)
 Grzegorz Plebanek
Hilbert spaces and aleph_omega.
(March 2014)
 Aleksander Iwanow (University of Wrocław)
Continuous logic and metric groups
(February 2014)
 Dariusz Tywoniuk
Circle is not unique continuum of type (1,0).
Recent results of Downarowicz, Snocha and Tywoniuk
(January 2014).
 Damian Sobota (Technical University of Wrocław)
Spaces of sigmafinite linear measure.
(December 2013).
 Grzegorz Plebanek (Wrocław University)
On sigmaalgebras in spaces of continuous functions.
(December 2013)
 Piotr BorodulinNadzieja (Wrocław University)
Small souslinean compacta.
(December 2013)
 Paweł Krupski (Wrocław University)
On local properties of fix points and periodic points.
(November 2013)
 Paweł Krupski (Wrocław University)
Charakteryzacje rodzin przegrodek na rozmaitosciach.
(November 2013)
 Damian Sobota (Technical University, Wrocław)
Functional chains on Corson compacta and more.
(October 2013)
 Pawel Krupski (Wrocław University)
Coanalytic absorbers in hyperspaces of Hilbert cube.
(October 2013)
 Mikołaj Krupski (Polish Academy of Sciences)
Space of continuous functions without a condensation on a sigmacompact space.
(October 2013)
2012/2013
 Mirosław Sobolewski (University of Warsaw)
A weakly chainable uniquely arcwise connected continuum without fixed point property; an answer to a David Bellamy's problem.
(May 2013)
 DamianSobota (Technical University, Wrocław)
Chains in C(K).
Recent results of Hart, Kania and Kochanek.
(May 2013)
 Wojtek Stadnicki (University of Wrocław)
Sub cut points in beta R.
Results of Dow and Hart.
(May 2013)
 Grzegorz Plebanek (University of Wrocław)
On isomorphisms of Banach spaces of continuous functions.
(May 2013)
 Leandro Candido Batista (Universidade de São Paulo)
Embeddings of C(K) spaces into C(S, X) spaces with distortion
strictly less than 3.
(Work in joint with Elói Medina Galego)
(April 2013)
 Konrad Ungeheuer (University of Wrocław)
The properties of periodic points of a typical mapping of polyhedra and
other spaces.
results from Konrad's Phd thesis
(April 2013)
 Antonio
Aviles (Murcia)
Analytic ideals and Ramsey theory
(April 2013)
 Piotr Grzegorz Drygier (University of Wrocław)
Sequential closure in the space of measures.
recent Piotr's results
(April 2013)
 Zbigniew Piotrowski (Youngstone State University)
On MichaelNamioka theorem and on functions with PCP.
(March 2013)
 Barnabás Farkas (University of Wrocław)
Partitioning bases of topological spaces.
D. Soukup and L. Soukup's answer to Farkas Problem.
(March 2013)
 Paweł Krupski (University of Wrocław)
Treelike curves without the fixedpoint property.
Recent results by Hagopian, Marsh and Prajs.
(March 2013)
 Dariusz Tywoniuk
Minimal noninvertible transformations of solenoids.
(January 2013)
 Ahmad Farhat (University of Wrocław)
Two nonmetric perfectly normal hereditarily indecomposable continua.
(December 2012)
 Wojciech Stadnicki (University of Wrocław)
Lattices and nonmetrizable continua
(December 2012)
 Mikołaj Krupski (Polish Academy of Sciences)
Some new observations on the tequivalence relations.
(December 2012)
 Marek Cuth (Charles University, Prague)
Separable reduction theorems by the method of elementary submodels.
(November 2012)
 Witold Marciszewski (University of Warsaw)
On Borel structures in function spaces.
Results from the paper joint with Roman Pol.
(November 2012)
 José Rodríguez (Univeristy of Murcia)
Weak compactness in LebesgueBochner spaces
Recent results of Jose.
(November 2012)
 Iryna Pastukhova (IvanFranko University, Lviv)
Inverse semigroups
An overview of results on inverse semigroups.
(November 2012)
 Szymon Zeberski (Technical University, Wrocław)
Topologically invariant sigmaideals on Hilbert cube (2)
recent results of Robert, Szymon and Taras Banakh
(November 2012)
 Robert Rałowski (Technical University, Wrocław)
Topologically invariant sigmaideals on Hilbert cube
recent results of Robert, Szymon Żeberski and Taras Banakh
(October 2012)
 Ondrej Kalenda (Charles University, Prague)
On spaces of continuous functions on compact lines
(October 2012)
 Krzysztof Omiljanowski (University of Wrocław)
Locally conic homogenuous spaces.
(October 2012)
 Damian Sobota (University of Wroclaw)
Fibers of a generic map from a surface into the unit interval.
(October 2012)
2011/2012
 Ahmad Farhat (University of Wrocław)
Smoother pebbles and prettier shells (some nice facts)
(June 2012)
 Damian Sobota (University of Wrocław)
Nonblockers in hyperspaces
(May 2012)
 Alicja Samulewicz(Technical University, Gliwice)
On Borel classes of narc connected graphs
 Piotr BorodulinNadzieja
On metricity of Lelek's problem
(results of Bartosova, Hart, Hoehn and vd Steeg)
(April 2012)
 Paweł Krupski
Factorwise rigidity of embeddings of the products of pseudoarcs
recent results of Chacon and Ilianes
(April 2012)
 Piotr Drygier
On the Uniqeness of the Decomposition of Continua into Cartesian Products
(March 2012)
 Włodzimierz Charatonik
Splitting composants in indecomposable continua
recent results of Włodzimierz Charatonik
(March 2012)
 Włodzimierz Charatonik
Bellamy's example of indecomposable continuum with 2 composants
Bellamy's construction from 1978
(March 2012)
 Ahmad Farhat (Wrocław University)
On hereditarily indecomposable compacta and factorization of maps
results from paper by K.P. Hart and E. Pol
(February 2012)
 Wojciech Stadnicki (Wrocław University)
On dimensions of hyperspaces
(February 2012)
 Włodzimierz Charatonik
Spaces of representatives
(January 2012)
 Paweł Krupski (Wrocław University)
More about Peano curves
(December 2011)
 Ahmad Farhat (Wrocław University)
Nonmetric locally connected continua and embeddings
results of Ahmad Farhat
(December 2011)
 Paweł Krupski (Wrocław University)
On certain new properties of Peano curves
recent results of Paweł Krupski
(December 2011)
 Konrad Ungeheuer (Wrocław University)
Properties of set of chain recurrent points for continuous mappings of LC^n
(November 2011)
 David Chodounsky (Czech Academy of Sciences)
On Katowice Problem and nontrivial autohomeomorphism on omega*
Recent results of Klaus Peter Hart
(November 2011)
 Wojciech Stadnicki (Wrocław University)
On Sternfeldtype embeddings
(November 2011)
 Konrad Ungeheuer (Wrocław University)
Properties of set of chain recurrent points for continuous mappings
Recent results of Konrad.
(October 2011)
2010/2011
 Aleksandra Kwiatkowska (University of Illinois, UrbanaCHampaign)
Large conjugacy classes in the group of all homeomorphisms of the
Cantor set and the projective Fraisse limit
(June 2011)
 Sławek Solecki (University of Illinois, UrbanaChampaign)
(seminar joint with Model Theory seminar and Set Theory seminar)
Abstract approach to finite Ramsey theory and selfdual Ramsey theorem
(June 2011)
 Alicja Kierus (Technical University, Łódź)
On density topologies
(June 2011)
 Jindřich Zapletal (Czech Academy of Sciences, University of Florida)
(seminar joint with Set Theory seminar)
Overspill, infinite games and forcing
Abstract: I will consider the traditional descriptive set theoretic
phenomenon of overspill, and I will show that it corresponds to a
natural and well behaved forcing preservation property. A characterization of
overspill via a determined infinite game will be the key tool in the
proofs.
(June 2011)
 Alicja Samulewicz (Technical University, Gliwice)
Polish groups as isometry groups of Polish spaces
based on papers by Gao and Kechris, Melleray, Malicki and Solecki.
(May 2011)
 Grzegorz Plebanek (Wrocław University)
Boolean algebras, measures and separability.
recent results of Grzegorz, Aviles and Rodriguez.
(May 2011)
 Ahmad Farhat (Wrocław University)
Characterizing some compact ordered spaces and their images.
recent Ahmad's results.
(April 2011)
 Michał Morayne (Technical University, Wrocław)
Generating the infinite symmetric group using a closed subgroup and the least number of other elements
results of Michal Morayne, J.D. Mitchelle and Y. Peresse.
(March 2011)
 Mauricio Chacon (UNAM, Mexico)
Cantor set as a projective Fraisse limit
Recent Mauricio's results
(March 2011)
 Maciej Pietroń (Technical University, Wrocław)
Measure preserving countable dense homogeneity of Hilbert cube
(March 2011)
 Piotr BorodulinNadzieja (Wrocław University)
Sequential properties of space of measures
Recent results obtained with Omar Selim.
(March 2011)
 Mauricio Chacon (UNAM, Mexico)
Circlelike Kelley continua are Kelley
remainders.
Recent Mauricio's results.
(January 2011)
 Hugo
Villanueva Mendez (UNAM, Mexico)
Embedding cones in hyperspaces
Results from Hugo's PhD thesis.
(January 2011)
 Jacek
Świątkowski (Wrocław
University)
Trees of metric compacta
(January 2011)
 Mikołaj Krupski (Polish
Academy of Sciences)
A dichotomy for Radon measures
recent results of Mikołaj and Grzegorz
Plebanek
(January 2011)
 Jerzy Krzempek (The Silesian
University of Technology, Gliwice)
Partitions in cylinders over continua
based on Miroslawa Renska's paper in
Colloquium Mathematicum
(December 2010)
 Piotr
BorodulinNadzieja (Wrocław
University)
Measures on Bell's space
recent results obtained with Mirna Dzamonja
(December 2010)
 Grzegorz
Plebanek (Wrocław
University)
Topology and measurability in
C(2^{\omega_1})
recent results of Grzegorz, Aviles and
Rodriguez
(December 2010)
 Ahmad Farhat (Wrocław
University)
Continuous images of compact linearly
ordered spaces revisited
recent results of Ahmad
(November 2010)
 Michał Ryszard Wójcik
Discontinuity points of functions with
closed connected graphs
results obtained by Michał Stanisław Wójcik
(November 2010)
 Krzysztof
Omiljanowski
(Wrocław University)
Continua with planar Whitney
levels
based on "Planarity of Whitney levels"
by Bustamente, Charatonik,
EscobedoConde.
 Taras
Banakh (Ivan Franko
University, Lviv)
Zerodimensional spaces in topology and
asymptology
(series of lectures in the "Set Theory
Applied" program)
(October 2010)
 Antonio
Aviles (Murcia)
The ball of the nonseparable Hilbert
space
results of Antonio and O. Kalenda
(October 2010)
2009/2010
 Ahmad Farhat (Wrocław University)
Perfectly normal compacta and a questions
of M.E. Rudin
(June 2010)
 Konrad Ungeheuer (Wrocław
University)
Conley barriers and thier
applications: Chainrecurrence and
Lyapunov functions
based on Pierre Pageault article from Topology and its Applications.
(May 2010)

Jacek Świątkowski (Wrocław
University)
Free Markov compacta as boundaries of
hyperbolic group
(April 2010)
 Michał R. Wójcik
Jelinek's discontinuous function with a
closed connected graph
(April 2010)
 Krzysztof
Omiljanowski (Wrocław
University)
Some constructions of homogenuous continua
(April 2010)

Paweł Krupski (Wrocław
University)
Some constructions of homogenuous continua
(April 2010)
 Mikołaj Krupski (Wrocław
University)
Measures on first countable spaces
the results from Mikołaj's master
thesis
(March 2010)
 Ahmad Farhat (Wrocław
University)
Perfectly normal compacta and a
question of M.E. Rudin
recent results of Ahmad Farhat
(March 2010)
 Grzegorz
Plebanek (Wrocław
University)
Some combinatorics related to Polish
spaces
new results of Grzegorz and Witold
Marciszewski
(January 2010)
 Paweł
Krupski (Wrocław
University)
Homogeneous continua are strong
Cantor manifolds
new result of Pawel Krupski
(January 2010)
 Janusz
Prajs (California State
University Sacramento)
Homogenuous contiua
(January 2010)
 Konrad Ungeheuer (University of
Wrocław)
Sets of constant distance from a compact
set in 2manifolds with a geodesic
metric.
(M. Misiurewicz, A. Blokh and L. Oversteegen), Proc. Amer.
Math. Soc. 137 (2009), 733743.
(December 2009)
 Paweł
Krupski (University of
Wrocław)
Mazurkiewicz manifolds
(November 2009)
 Paweł
Krupski (University of
Wrocław)
Generalized Cantor manifolds
(November 2009)
 Piotr
Przytycki (Polish Academy of
Sciences)
Ending laminations and the Noebeling
curve.
results of Piotr Przytycki and Sebastian
Hensel.
(October 2009)
 Konrad Ungeheuer (University of
Wrocław)
The size of the Chain Recurrent Set for
Generic Maps on an $n$Dimensional Locally
$(n1)$Connected Compact Space.
results of Katsuya Yokoi
(October 2009)
2008/2009
 Włodzimierz Charatonik
(MissouriRolla)
Topologies on space of continua
(August 2009)
 Jiling Cao (Auckland
Univ. Techn., New Zeland)
The Wijsman hypertopology and the Baire
property
(July 2009)
 Chris
Mouron (Rhodes
College, Memphis)
Expansive group actions and
indecomposable continua
(July 2009)
 Paweł
Krupski (University of
Wrocław)
Blockers in hyperspaces
New results obtained by Paweł Krupski during
his visit in
Mexico.
(June 2009)
 Ahmad Farhat (Unversity of
Wrocław)
Pathological examples of dendritic
spaces
B.J. Pearson
(Comment. Math. Univ. Carolinae 15/2
(1974))
(June 2009)
 Jerzy Krzempek (The Silesian
University of Technology, Gliwice)
On transfinite inductive dimensions
of nonmetrizable chainable continua.
Recent results of Jerzy Krzempek and M. G.
Charalambous.
(June 2009)
 Witold Marciszewski (University of
Warsaw)
Borel almost disjoint families and
Rosenthal compacta
Recent results obtained by
Witold Marciszewski and Roman Pol.
(May 2009)
 Jindrich
Zapletal (University of
Florida, Gainesville)
Session of Polish Mathematical
Society
Forcing idealized
Examples of forcings defined by ideals of Borel
sets and its properties.
(May 2009)
 Jana
Flašková (University of West Bohemia in Pilsen)
Covering omega^* by nowhere dense
sets
"I want to mention the general problem of covering omega^* by nowhere
dense sets, but the core of the talk is about special types of coverings
(translations of nowhere dense sets by permutations of omega) and some
particular nowhere dense sets (determined by summable ideals). I intend to
emphasize the topological aspects of the problem and present
an extended general overview about nowhere dense subsets in omega^*."
(May 2009)
 Jerzy Krzempek (The Silesian University of Technology, Gliwice)
Fully closed maps and higherdimensional rigid
continua.
(April 2009)
 Piotr
BorodulinNadzieja (University of Wrocław)
Onedimensional locally connected Sspaces
J. Hart, K. Kunen (Topology and its
Applications 156/3 (2009), 601609)
(April 2009)
 Jacek Nikiel (Opole University)
A wrong approach of Maehara and Tokumoto to the nonseparable
HahnMazukiewicz theorem (March
2009)
 Michał Ryszard
Wójcik
A complete nonseparably connected space
work joint with Taras Banakh and Krzysztof Omiljanowski
(March 2009)
 Ahmad Farhat (University of Wrocław)
Homogeneous spaces and transitive actions by Polish (resp. aleph zero
bounded) groups
Jan Van Mill (Israel J. Math. 165 (2008), 133159).
(March 2009)
 Michał Ryszard
Wójcik
A nonconstant continuous locally extremal function on a connected metric
space (January 2009)
 Grzegorz
Plebanek (University of Wrocław)
Corson compact spaces and spaces of continuous functions
(February 2009)
 Jacek Nikiel (Opole Univiersity)
Homogeneous Suslinian continua (December 2008)
 Konrad Ungeheuer (University of Wrocław)
Some new tools in
classifications problem of homogeneuous continua (December
2008);
 Paweł Zawiślak (University of Wrocław)
Trees of manifolds and boundaries of systolic
groups presentation of main
results of Paweł's Ph.D. thesis (October, November 2008)
2008
 Włodzimierz Charatonik
(Missouri University of Science and Technology)
Pseudościągalność
(16 June 2008)
 Alicja
Samulewicz (The Silesian University of Technology,
Gliwice),
Hiperprzestrzeń podcontinuów nierozkładalnych kostki
(26 May 2008)
 Michał Ryszard
Wójcik (Wrocław University of Technology),
Nieośrodkowo spójne przestrzenie metryczne (19 May 2008)
 Michał Ryszard
Wójcik (Wrocław University of Technology),
Funkcja ciągła po współrzędnych o wykresie domkniętym (5 May 2008)
 Michał Ryszard
Wójcik (Wrocław University of Technology),
Charakteryzacja ciągłości w języku spójności wykresu
 Mikhail Tkachenko (Universidad Autónoma Metropolitana, Mexico)
Good pseudocompact topological group topologies on Abelian groups
(22 April 2008);
 Piotr
BorodulinNadzieja (University of Wrocław),
Generalized Erdős spaces J. J.
Dijkstra and D. Visser (Topology Appl. 155 (2008), 233–251).
(14 April 2008)
 Konrad Ungeheuer (The Silesian University of Technology, Gliwice),
Example of homogeneuos 1dimensional noncohesive space (April
2008);
 Krzysztof
Omiljanowski (University of Wrocław),
Equivalent metrics and the spans of graphs (March 2008);
 Jacek Nikiel (Opole University),
HahnMazurkiewicz Theorem (March 2008);
 