TOPOLOGY SEMINAR
Mathematical Institute, University of Wrocław.On Boolean images of connected spaces. (October 2016) On spaces homeomorphic to its hiperspaces. (June 2016) Fraisse theory and homogeneity of the Cantor set. (May 2016) Weakly Radon-Nikodým compact spaces. (May 2016) On periodicity of pairs. (May 2016) Counterexamples for IFS-attractors. (April 2016) Universal minimal flows and Ramsey theory. series of lectures. (April 2016) On a stronger form of countable dense homogeneity of the plane. Joint results with Michał Morayne. (March 2016) Compactifications of integers and c_0-complementedness. Recent results of Piotr and Grzegorz Plebanek. (February 2016) Gromov boundaries with Loewner combinatorial property. (January 2016) Uniqueness of factorization for cartesian products. (January 2016) Sets of accumulation points of series in normed spaces. (January 2016) Minimal universal flow of the group of homeomorphisms of Lelek fan. (joint work with Dana Bartosova) (December 2015) Complexity of topological conjugacy of minimal Toeplitz subshifts. (joint work with Todor Tsankov) (December 2015) On topological properties reflected by small continuous images. (joint work with Menachem Magidor) (December 2015) Separation properties of homogenuous continua. (October 2015) Universal Banach space induced by a non-universal Boolean algebra. (results of Brech and Koszmider) (October 2015) Radon-Nikodym compact spaces. (joint work with P. Koszmider) (October 2015) Ramsey properties of finitely dimensional normed spaces. (joint work with J. Lopez-Abad). (June 2015) The class of perfectly null sets and its transitive version. (joint work with T. Weiss). Compact-like semitopological and topological semigroups (May 2015) Some generalizations of k-spaces with applications to topological groups and function spaces, (May 2015) c_0 complemented in Banach spaces (May 2015) Sequential properties of weak topology in Banach spaces. (May 2015) Co-analytic completeness of certain families of continua in cubes. (April 2015) On certain characterizaction of pseudoarc. (April 2015) Measures on Suslinean spaces. (March 2015) Certain analogon of Alexandrov-Hausdorff theorem for semigroup of functions. (March 2015) Topological dimension of a space is determined by the pointwise topology of its function space. (March 2015) An answer to a question of Kolmogorov (based on paper by Balka, Elekes, Mathe). (March 2015) Bergman-Shelah ordering on semigroups; on certain algebraic version of Continuum Hypothesis. (March 2015) On compact metrizable space X for which C_p(X) is not homeomorphic to its square recent results joint with Mikołaj Krupski (February 2015) Growth of omega supporting a strictly positive measure. (January 2015) Normal measure on connected compact space. (January 2015) Application to Boolean algebras of results on continuous images of ordered compacta. (December 2014) Midpoint-free sets and their analogies in certain topological groups. (December 2014) Homogeneous continua that are not separated by arcs. (December 2014) Large independent sets in small graphs. Recent results joint with Lyubomir Zdomskyy. (November 2014) Topologies induced by group actions. (November 2014) The elusive geometry of l_infty/c_0. An overview of known results and open problems. (October 2014) Ultrametrics in locally compact spaces. results obtained with Alexander Bendikov (October 2014) Kontinua płaskie rozcinane przez każde swoje podkontinuum. (October 2014) Combinatorial properties of ideals on countable sets: density versus selectivity. (recent results of A. Kwela and P. Zakrzewski) (September 2014) Some new results on the pseudo-arc. Veronica Martinez de la Vega (UNAM) To be announced (July 2014) Tukey orderings in separable Banach spaces. (June 2014) The Gromov-Hausdorff metric and hyperspaces. (May 2014) The Aron-Maestre comb (May 2014) Continuity in terms of connectedness for functions on the line. (April 2014) On a generalization of iterated function systems. (recent results of Jarosław and Filip Strobin) (April 2014) Countable tightness in spaces of probability measures. (recent results of Grzegorz and Damian Sobota) (April 2014) On the homeomorphism groups of Brechner's continua (recent results of Dijsktra and Hickmann) (March 2014) Convergent convex block subsequence of measures. (March 2014) On complemented embeddings of c_0 in C(K) spaces. (March 2014) Hilbert spaces and aleph_omega. (March 2014) Continuous logic and metric groups (February 2014) Circle is not unique continuum of type (1,0). Recent results of Downarowicz, Snocha and Tywoniuk (January 2014). Spaces of sigma-finite linear measure. (December 2013). On sigma-algebras in spaces of continuous functions. (December 2013) Small souslinean compacta. (December 2013) On local properties of fix points and periodic points. (November 2013) Charakteryzacje rodzin przegrodek na rozmaitosciach. (November 2013) Functional chains on Corson compacta and more. (October 2013) Coanalytic absorbers in hyperspaces of Hilbert cube. (October 2013) Space of continuous functions without a condensation on a sigma-compact space. (October 2013) A weakly chainable uniquely arcwise connected continuum without fixed point property; an answer to a David Bellamy's problem. (May 2013) Chains in C(K). Recent results of Hart, Kania and Kochanek. (May 2013) Sub cut points in beta R. Results of Dow and Hart. (May 2013) On isomorphisms of Banach spaces of continuous functions. (May 2013) 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) The properties of periodic points of a typical mapping of polyhedra and other spaces. results from Konrad's Phd thesis (April 2013) Analytic ideals and Ramsey theory (April 2013) Sequential closure in the space of measures. recent Piotr's results (April 2013) On Michael-Namioka theorem and on functions with PCP. (March 2013) Partitioning bases of topological spaces. D. Soukup and L. Soukup's answer to Farkas Problem. (March 2013) Tree-like curves without the fixed-point property. Recent results by Hagopian, Marsh and Prajs. (March 2013) Minimal non-invertible transformations of solenoids. (January 2013) Two non-metric perfectly normal hereditarily indecomposable continua. (December 2012) Lattices and non-metrizable continua (December 2012) Some new observations on the t-equivalence relations. (December 2012) Separable reduction theorems by the method of elementary submodels. (November 2012) On Borel structures in function spaces. Results from the paper joint with Roman Pol. (November 2012) Weak compactness in Lebesgue-Bochner spaces Recent results of Jose. (November 2012) Inverse semigroups An overview of results on inverse semigroups. (November 2012) Topologically invariant sigma-ideals on Hilbert cube (2) recent results of Robert, Szymon and Taras Banakh (November 2012) Topologically invariant sigma-ideals on Hilbert cube recent results of Robert, Szymon Żeberski and Taras Banakh (October 2012) On spaces of continuous functions on compact lines (October 2012) Locally conic homogenuous spaces. (October 2012) Fibers of a generic map from a surface into the unit interval. (October 2012) Smoother pebbles and prettier shells (some nice facts) (June 2012) Nonblockers in hyperspaces (May 2012) On Borel classes of n-arc connected graphs On metricity of Lelek's problem (results of Bartosova, Hart, Hoehn and vd Steeg) (April 2012) Factorwise rigidity of embeddings of the products of pseudoarcs recent results of Chacon and Ilianes (April 2012) On the Uniqeness of the Decomposition of Continua into Cartesian Products (March 2012) Splitting composants in indecomposable continua recent results of Włodzimierz Charatonik (March 2012) Bellamy's example of indecomposable continuum with 2 composants Bellamy's construction from 1978 (March 2012) On hereditarily indecomposable compacta and factorization of maps results from paper by K.P. Hart and E. Pol (February 2012) On dimensions of hyperspaces (February 2012) Spaces of representatives (January 2012) More about Peano curves (December 2011) Non-metric locally connected continua and embeddings results of Ahmad Farhat (December 2011) On certain new properties of Peano curves recent results of Paweł Krupski (December 2011) Properties of set of chain recurrent points for continuous mappings of LC^n (November 2011) On Katowice Problem and non-trivial autohomeomorphism on omega* Recent results of Klaus Peter Hart (November 2011) On Sternfeld-type embeddings (November 2011) Properties of set of chain recurrent points for continuous mappings Recent results of Konrad. (October 2011) Large conjugacy classes in the group of all homeomorphisms of the Cantor set and the projective Fraisse limit (June 2011) (seminar joint with Model Theory seminar and Set Theory seminar) Abstract approach to finite Ramsey theory and self-dual Ramsey theorem (June 2011) On density topologies (June 2011) (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) Polish groups as isometry groups of Polish spaces based on papers by Gao and Kechris, Melleray, Malicki and Solecki. (May 2011) Boolean algebras, measures and separability. recent results of Grzegorz, Aviles and Rodriguez. (May 2011) Characterizing some compact ordered spaces and their images. recent Ahmad's results. (April 2011) 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) Cantor set as a projective Fraisse limit Recent Mauricio's results (March 2011) Measure preserving countable dense homogeneity of Hilbert cube (March 2011) Sequential properties of space of measures Recent results obtained with Omar Selim. (March 2011) Circle-like Kelley continua are Kelley remainders. Recent Mauricio's results. (January 2011) Embedding cones in hyperspaces Results from Hugo's PhD thesis. (January 2011) Trees of metric compacta (January 2011) A dichotomy for Radon measures recent results of Mikołaj and Grzegorz Plebanek (January 2011) Partitions in cylinders over continua based on Miroslawa Renska's paper in Colloquium Mathematicum (December 2010) Measures on Bell's space recent results obtained with Mirna Dzamonja (December 2010) Topology and measurability in C(2^{\omega_1}) recent results of Grzegorz, Aviles and Rodriguez (December 2010) Continuous images of compact linearly ordered spaces revisited recent results of Ahmad (November 2010) Discontinuity points of functions with closed connected graphs results obtained by Michał Stanisław Wójcik (November 2010) Continua with planar Whitney levels based on "Planarity of Whitney levels" by Bustamente, Charatonik, Escobedo-Conde. Zero-dimensional spaces in topology and asymptology (series of lectures in the "Set Theory Applied" program) (October 2010) The ball of the nonseparable Hilbert space results of Antonio and O. Kalenda (October 2010) Perfectly normal compacta and a questions of M.E. Rudin (June 2010) Conley barriers and thier applications: Chain-recurrence and Lyapunov functions based on Pierre Pageault article from Topology and its Applications. (May 2010) Free Markov compacta as boundaries of hyperbolic group (April 2010) Jelinek's discontinuous function with a closed connected graph (April 2010) Some constructions of homogenuous continua (April 2010) Some constructions of homogenuous continua (April 2010) Measures on first countable spaces the results from Mikołaj's master thesis (March 2010) Perfectly normal compacta and a question of M.E. Rudin recent results of Ahmad Farhat (March 2010) Some combinatorics related to Polish spaces new results of Grzegorz and Witold Marciszewski (January 2010) Homogeneous continua are strong Cantor manifolds new result of Pawel Krupski (January 2010) Homogenuous contiua (January 2010) Sets of constant distance from a compact set in 2-manifolds with a geodesic metric. (M. Misiurewicz, A. Blokh and L. Oversteegen), Proc. Amer. Math. Soc. 137 (2009), 733-743. (December 2009) Mazurkiewicz manifolds (November 2009) Generalized Cantor manifolds (November 2009) Ending laminations and the Noebeling curve. results of Piotr Przytycki and Sebastian Hensel. (October 2009) The size of the Chain Recurrent Set for Generic Maps on an $n$-Dimensional Locally $(n-1)$-Connected Compact Space. results of Katsuya Yokoi (October 2009) Topologies on space of continua (August 2009) The Wijsman hypertopology and the Baire property (July 2009) Expansive group actions and indecomposable continua (July 2009) Blockers in hyperspaces New results obtained by Paweł Krupski during his visit in Mexico. (June 2009) Pathological examples of dendritic spaces B.J. Pearson (Comment. Math. Univ. Carolinae 15/2 (1974)) (June 2009) On transfinite inductive dimensions of non-metrizable chainable continua. Recent results of Jerzy Krzempek and M. G. Charalambous. (June 2009) Borel almost disjoint families and Rosenthal compacta Recent results obtained by Witold Marciszewski and Roman Pol. (May 2009) Session of Polish Mathematical Society Forcing idealized Examples of forcings defined by ideals of Borel sets and its properties. (May 2009) 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) Fully closed maps and higher-dimensional rigid continua. (April 2009) One-dimensional locally connected S-spaces J. Hart, K. Kunen (Topology and its Applications 156/3 (2009), 601-609) (April 2009) A wrong approach of Maehara and Tokumoto to the non-separable Hahn-Mazukiewicz theorem (March 2009) A complete nonseparably connected space work joint with Taras Banakh and Krzysztof Omiljanowski (March 2009) Homogeneous spaces and transitive actions by Polish (resp. aleph zero bounded) groups Jan Van Mill (Israel J. Math. 165 (2008), 133-159). (March 2009) A nonconstant continuous locally extremal function on a connected metric space (January 2009) Corson compact spaces and spaces of continuous functions (February 2009) Homogeneous Suslinian continua (December 2008) Some new tools in classifications problem of homogeneuous continua (December 2008); Trees of manifolds and boundaries of systolic groups presentation of main results of Paweł's Ph.D. thesis (October, November 2008) Pseudościągalność (16 June 2008) Hiperprzestrzeń podcontinuów nierozkładalnych kostki (26 May 2008) Nieośrodkowo spójne przestrzenie metryczne (19 May 2008) Funkcja ciągła po współrzędnych o wykresie domkniętym (5 May 2008) Charakteryzacja ciągłości w języku spójności wykresu Good pseudocompact topological group topologies on Abelian groups (22 April 2008); Generalized Erdős spaces J. J. Dijkstra and D. Visser (Topology Appl. 155 (2008), 233–251). (14 April 2008) Example of homogeneuos 1-dimensional non-cohesive space (April 2008); Equivalent metrics and the spans of graphs (March 2008); Hahn-Mazurkiewicz Theorem (March 2008); |