Past Talks

Date Speaker Title
11-Jan-2021 O.Maslyuchenko
(Chernivtsi)
Compact subspaces of the space of separately continuous functions
28-Dec-2020 Serhiy Maksymenko
(Kyiv)
Smooth approximations and their applications to homotopy types
21-Dec-2020 Taras Banakh
(Lviv)
A semigroup is finite if and only if it is chain-finite and antichain-finite
14-Dec-2020 Mykhailo Popov
(Ivano-Frankivsk--Chernivtsi)
Some open problems about complemented subspaces of L1
7-Dec-2020 Taras Vasylyshyn
(Ivano-Frankivsk)
Algebras of symmetric functions on some Banach spaces
23-Nov-2020 Mykhailo Popov
(Ivano-Frankivsk--Chernivtsi)
Theorems on representations of linear and orthogonally additive operators
16-Nov-2020 Serhiy Bardyla
(Vienna)
Regular countably compact spaces admitting only constant continuous real-valued maps
9-Nov-2020 Alex Ravsky
(Lviv)
Bounds on the extent of a topological space
2-Nov-2020 All
(Lviv--Ivano-Frankivsk--Chernivtsi)
Divertissement
14-Sep-2020 Andrzej Katunin
(Gliwice)
Fractals and fractal sets in Euclidean, hypercomplex, and multicomplex spaces
13-Jul-2020 Катерина Максимик
(Львів)
Про локально компактнi групи з нулем
29-Jun-2020 Анатолій Савчук
(Львів)
Коскінченні часткові ізометрії зліченних метричних просторів
8-Jun-2020 Taras Banakh
(Lviv)
Characterizing the category of sets
1-Jun-2020 Mykhailo Zarichnyi
(Lviv)
Universal kω-spaces related to property C
26-May-2020 Conference Geometry in Odesa
(Lviv)
online conference
26-May-2020 Mykhailo Zaricnhyi
(Lviv)
Functors and fuzzy metric spaces
26-May-2020 M.Romanskyi
(Drohobych)
Конус, надбудова та джойн в асимптотичних категорiях. Лiпшицева та груба еквiвалентностi деяких функторiальних конструкцiй
18-May-2020 Taras Banakh
(Lviv)
The completion of the hyperspace of finite subsets, endowed with the l^1-metric
11-May-2020 Mykhailo Romanskyi
(Lviv)
On functorial constructions in the asymptotic category
4-May-2020 Oleksandr Maslyuchenko
(Chernivtsi-Katowice)
Betweenness spaces and extension of monotone functions
27-Apr-2020 Lyubomyr Zdomskyy
(Vienna)
Hereditarily Baire hyperspaces of metric spaces
23-Apr-2020 Mykhailo Popov
(Chernivtsi)
Незалежність Радемахерівського типу в булевих алгебрах
16-Apr-2020 Mykhailo Popov
(Чернівці)
Горизонтальна властивість Єгорова векторних граток
13-Apr-2020 Taras Banakh
(Lviv)
In the von Neumann–Bernays–Gödel axiomatic system, the Axiom of Transposition can be simplified
8-Apr-2020 Mykhailo Zarichnyi
(Lviv)
Minkowski-Rådström-Hörmander space of convex subsets
2-Mar-2020 Taras Radul
(LNU)
Transfinite extensions of asymptotic dimension
24-Feb-2020 Я.Притула, Т.Банах, М.Зарічний, О.Гутік
(Львів)
Топологія у Львівському університеті (LvivTopoFest)
17-Feb-2020 Pavlo Khylynskyi
(Lviv)
The minimal semigroup topologies on an infinite semigroup of matrix units
10-Feb-2020 All
(Lviv)
Divertissement
25-Nov-2019 Taras Banakh
(Lviv)
Josefson-Nissenzweig Property for locally convex spaces
18-Nov-2019 Olena Hryniv
(LNU)
A parallel metrization theorem
11-Nov-2019 Taras Banakh
(Lviv)
A solution of the Tingley problem for C3-smooth 2-dimensional Banach spaces
4-Nov-2019 Taras Banakh
(Lviv)
Tingley Problem: isometries of spheres of Banach spaces
28-Oct-2019 Oleg Gutik
(ЛНУ)
Структурні властивості топологічних напівгруп, близьких до компактних
21-Oct-2019 Oleg Gutik
(ЛНУ)
Структурні властивості топологічних напівгруп, близьких до компактних
7-Oct-2019 Mykhailo Zarichnyi
(Lviv)
On C*-embeddings in sublinear and subpower coronas
30-Sep-2019 Taras Banakh
(Lviv)
Some problems in Asymptology
23-Sep-2019 Taras Banakh
(Lviv)
Geometry Multiverse
16-Sep-2019 Mykhailo Zarichnyi
(Lviv)
Presentation of the book net/лінне
2-Sep-2019 Taras Banakh
(Lviv)
An example of a Hausdorff semitopological semilattice, which is not $\bar G_\omega$-Lawson
22-Jul-2019 Iryna Kuz
(University of Florida)
Introduction to Topological Data Analysis
10-Jun-2019 Oleg Gutik
(Lviv)
Compact semitopological semigroups and their compact topological Inλ-extensions
3-Jun-2019 Alex Ravsky
(Lviv)
On structure of minimal feasible lists of swaps representing chaotic attractors, II
27-May-2019 Alex Ravsky
(Lviv)
On structure of minimal feasible lists of swaps representing chaotic attractors
20-May-2019 Taras Banakh
(Lviv)
Baire category properties of some function spaces
6-May-2019 Taras Banakh
(Lviv)
Selection properties of the split interval and the Continuum Hypothesis
22-Apr-2019 Oleg Pikhurko
(University of Warwick)
The minimum number of triangles in graphs of given order and size
15-Apr-2019 Taras Banakh
(Lviv)
Площа поверхні сфери та об'єм кулі
8-Apr-2019 Mykhailo Zarichnyi
((Lviv))
Topology of the space of persistence diagrams endowed with the bottleneck distance
1-Apr-2019 Taras Banakh
(Lviv)
σ-continuous functions and related small uncountable cardinals
18-Mar-2019 Taras Banakh
(Lviv)
A metrizable semitopological semilattice with non-closed partial order
11-Mar-2019 Taras Radul
(Lviv)
Functional representation of a capacity monad
4-Mar-2019 Alex Ravsky
(Lviv)
Two new problems from MathOverflow
25-Feb-2019 Inna Hlushak
(Ivano-Frankivsk)
Approximations of non-additive measures
18-Feb-2019 Mykhailo Zarichnyi
(Lviv)
Spaces of persistence diagrams in Topological Data Analysis
11-Feb-2019 All
(Lviv)
Divertissement
4-Feb-2019 Taras Banakh
(Lviv)
Metrization of functors with finite supports
28-Jan-2019 Taras Banakh
(Lviv)
The spread of a topological groups containing an uncountable subspace of the Sorgenfrey line
21-Jan-2019 Taras Banakh
(Lviv)
Analytic and banalytic spaces and their applications in Topological Algebra
14-Jan-2019 Taras Banakh
(Lviv)
Analytic and banalytic spaces
10-Dec-2018 Taras Banakh
(Lviv)
On base zero-dimensional spaces
19-Nov-2018 Iryna Pastukhova
(Lviv)
Ditopological Inverse Semigroups
12-Nov-2018 Denys Onypa
(Chernivtsi)
Limit sets and oscillation of functions
5-Nov-2018 Taras Banakh
(Lviv)
The normality of products of balleans
29-Oct-2018 Taras Banakh
(LNU)
The normality of ball structures on groups
22-Oct-2018 Taras Banakh
(Lviv)
The normality of finitary balleans on groups
8-Oct-2018 Agnieszka Bojarska - Sokołowska
(Uniwersytet Warmińsko-Mazurski w Olsztynie. )
Uniwersytety dziecięce w Polsce i interaktywne nauczanie matematyki.
24-Sep-2018 Taras Radul
(LNU)
On I-baricentrically soft compacta
12-Sep-2018 Dmitry Gavinsky
(Institute of Mathematics of Czech Academy of Sciences)
Entangled simultaneity versus classical interactivity in communication complexity
10-Sep-2018 Dmitry Gavinsky
(Institute of Mathematics in Prague)
Якісні розділення між квантовою і класичною комунікаційною складністю
4-Sep-2018 All
Divertissement
21-May-2018 Serhiy Bardyla
(Lviv)
On graph inverse semigroups
14-May-2018 Taras Banakh
(Lviv)
A real function is continuous if and only if it has closed graph and is peripherally bounded
7-May-2018 Taras Banakh
(Lviv)
A real function is continuous if and only if it has closed graph and a weak Darboux property
23-Apr-2018 Alex Ravsky
(IPPMM, Lviv)
The chromatic number of the plane is at least 5
16-Apr-2018 Taras Banakh
Applying Gutik's hedgehods to recognizing Bokalo regular spaces
2-Apr-2018 Taras Radul
(LNU)
An answer to a question of Zarichnyi
26-Mar-2018 Bogdan Bokalo
Scattered continuity and the hereditary Lindelof number
9-Oct-2017 Serhiy Bardyla
(LNU)
On 0-bisimple inverse semigroups
19-Jun-2017 Taras Banakh
(LNU)
Generalizing Prodanov-Stoyanov Theorem on minimal topological groups
12-Jun-2017 Taras Banakh
(LNU)
Detecting H-closed topological groups
29-May-2017 Serhiy Bardyla
(LNU)
Detecting H-closed semigroups
20-Mar-2017 Taras Banakh
(LNU)
On rulers and difference bases in finite groups
13-Mar-2017 Inna Pozdniakova
(LNU)
On semigroups of partial injective transformations of some partially ordered sets
27-Feb-2017 Serhiy Bardyla
(LNU)
Н-closed topological semigroups and semilattices
20-Feb-2017 All
(LNU)
Divertisement
26-Dec-2016 Bohdan Bokalo
(LNU)
Some open problems related to the weak continuity
12-Dec-2016 Mykhailo Zarichnyi
(LNU)
Self-similar idempotent measures II
5-Dec-2016 Mykhailo Zarichnyi
(LNU)
Self-similar idempotent measures I
28-Nov-2016 Taras Banakh
(LNU)
Separation Axioms in Quasitopological groups
21-Nov-2016 Alex Ravsky
(IAPMM)
Strongly σ-metrizable spaces are super σ-metrizable
7-Nov-2016 PhD-students
(LNU)
Reports
31-Oct-2016 Olena Karlova
(Chernivtsi)
Baire one functions depending on finitely many coordinates
24-Oct-2016 Taras Banakh
(LNU)
On Haar-null and Haar-meager sets in Polish groups
10-Oct-2016 All
(LNU)
Divertisement
3-Oct-2016 Ostap Chervak
(LNU)
Color guessing on graphs
26-Sep-2016 Ostap Chervak
(LNU)
On Ramsey trees
5-Sep-2016 Oleg Pikhurko
(University of Warwick)
Measurable circle squaring
5-Oct-2015 Taras Banakh
(LNU)
Closed Steinhaus properties of σ-ideals on Polish groups, II
21-Sep-2015 Taras Banakh
(LNU)
Closed Steinhaus properties of σ-ideals on Polish groups
8-Jun-2009 Oleg Pikhurko
(University of Warwick)
Maximizing the number of colorings
25-May-2009 R.Cauty
(Paris)
Cohomological properties of subspaces of symmetric powers
27-Apr-2009 Taras Banakh
(LNU)
Constructing economical connected metric spaces
13-Apr-2009 Oleg Gutik
(Lviv)
Embeddings and closedness of inverse semigroups of finite partial bijections
6-Apr-2009 N. Kolos, B. Bokalo
(Lviv)
When is SC(X)=RX?
19-May-2008 L.Karchevska
(LNU)
The functor of non-expanding functionals is not open
12-May-2008 R.Voytsitskyy
(LNU)
Extensor and infinite-dimensional properties of hyperspaces
5-May-2008 V.Mykhaylyuk
(Chernivtsi)
Some problems of the Baire and Lebesgue classification of separately continuous functions
8-Apr-2008 Mykhailo Zarichnyi
(Lviv)
31-Mar-2008 Taras Banakh
(LNU)
Exdending vector-valued functions
24-Mar-2008 Taras Banakh
(LNU)
The coarse classification of countable groups
17-Mar-2008 Taras Banakh
(LNU)
The coarse classification of homogeneous ultra-metric spaces
3-Mar-2008 Taras Banakh
(LNU)
The coarse classification of homogeneous ultra-metric spaces
25-Feb-2008 All
(LNU)
Divertissement
18-Feb-2008 All
(LNU)
Divertissement
24-Dec-2007 N.Lyaskovska
(LNU)
Packing index of subsets in Polish groups
17-Dec-2007 Taras Banakh
(LNU)
Algebra in superextensions of groups
10-Dec-2007 Oleg Gutik
(Lviv)
On finite partial bijections of bounded rank of a Hausdorff topological space.
3-Dec-2007 Lyubomyr Zdomskyy
(LNU)
The strong Pytkeev property in function spaces Ck(X) and Cp(X)
26-Nov-2007 Lyubomyr Zdomskyy
(LNU)
The failure of the Lindelöf property in powers of L-spaces
19-Nov-2007 Lyubomyr Zdomskyy
(LNU)
Characterizing the Arkhangelski's α1-property in Cp-spaces
12-Nov-2007 Taras Banakh
(LNU)
Right-topological semigroups of maximal linked systems on groups
5-Nov-2007 D.Repovs
(Ljubljana)
Characterization of smooth manifolds by smooth homogeneity
22-Oct-2007 Taras Banakh
(LNU)
Each Gδ-measurable map from a complete metric space into a regular space is Fσ-measurable.
15-Oct-2007 Taras Banakh
(LNU)
Each Gδ-measurable map from a complete metric space into a regular space is Fσ-measurable.
8-Oct-2007 Taras Radul
(LNU)
Geometry of multiplication map of the order-preserving monad.
1-Oct-2007 Taras Banakh
(LNU)
Homeomorphism groups of non-compact surfaces
17-Sep-2007 All
(LNU)
Divertissement
10-Sep-2007 All
(LNU)
Divertissement
31-Aug-2007 D.Repovs
(Ljubljana)
Interesting constructions based on the Topologist sine curve.
14-May-2007 Taras Banakh
(LNU)
Symmetric subsets and partitions of the Lobachevsky plane.
7-May-2007 Taras Radul
(LNU)
Hyperspace as intersection of idempotent measures and inclusion hyperspaces.
16-Apr-2007 Taras Banakh
(Lviv)
Compactly convex sets.
2-Apr-2007 Taras Banakh
(Lviv)
Continuously homogeneous spaces.
26-Mar-2007 Taras Banakh
(Lviv)
Group-sequential topological groups.
12-Mar-2007 Oleg Gutik
(Lviv)
H-closed topological semigroups and semilattices.
5-Mar-2007 K.Koporkh
(Ivano-Frankivs'k)
On spaces of quotient maps.
26-Feb-2007 Mykhailo Zarichnyi
(Lviv)
Spaces of upper-semicontinuous capacities.
18-Dec-2006 O.Shukel'
(LNU)
Functors of finite degree and asymptotic dimension zero.
11-Dec-2006 Taras Banakh
(Lviv)
Tranfinite separation dimension.
6-Dec-2006 Taras Radul
(LNU)
Openess of Hartman-Mycielski functor.
6-Dec-2006 Mykhailo Zarichnyi
(Lviv)
Idempotent probability measures.
20-Nov-2006 Taras Banakh
(LNU)
On scatteredly continuous maps between topological spaces.
15-Nov-2006 Szymon Głąb
(Łódź)
On Komjath property of sigma-ideals.
13-Nov-2006 Piotr Borodulin-Nadzieja
(University of Wrocław)
Minimally generated Boolean algebra
6-Nov-2006 Alexander Balinsky
(Cardiff University)
Zero modes of Pauli operator
6-Nov-2006 Taras Banakh
(LNU)
On scattered compactifications of scattered metrizable spaces.
30-Oct-2006 E. Tymchatyn
(University of Saskatchewan)
Convex metrics in the non-compact setting.
16-Oct-2006 E. Tymchatyn
(University of Saskatchewan)
Continuous extension operators for uniformly continuous functions and pseudometrics.
9-Oct-2006 Taras Banakh
(LNU)
Absolute Z-spaces and their applications to Dimension Theory.
2-Oct-2006 Taras Radul
(LNU)
Asymptotic dimensions.
11-Sep-2006 E. Tymchatyn, A.Zagorodnyuk
Free Banach spaces and extensions of Lipschitz maps.
6-Sep-2006 Taras Radul
(LNU)
Asymptotic dimensions.
2-Sep-2006 D.Repovs
(Ljubljana)
Suspensions of cell-like compactum.
24-May-2006 H.Mildenberger
(Vienna)
On cardinal characteristics of the reals.
22-May-2006 R.Cauty
(Paris)
Homologic algebra and generalization of Borsuk-Ulam Theorem.
6-Mar-2006 O.Shukel'
(LNU)
Hypersymmetric powers and asymptotically zero-dimesional spaces.
27-Feb-2006 Taras Banakh
(LNU)
P1-metrics.
20-Feb-2006 N.Lyaskovska
(LNU)
Weakly P-small not P-small subsets in a group.
13-Feb-2006 All
(LNU)
Divertissement.
28-Nov-2005 Taras Banakh
(LNU)
Division and k-th Root Theorems for the Hilbert cube.
14-Nov-2005 Taras Banakh
(LNU)
An answer to Maslyuchenko's question.
7-Nov-2005 Ihor Stasyuk
(LNU)
On operators extending partial ultrametrics.
24-Oct-2005 Taras Banakh
(LNU)
Subproper maps and k*-spaces.
5-Oct-2005 N.Lyaskovska
(LNU)
Weakly P-small not P-small subsets in an Abelian group.
26-Sep-2005 R.Kozhan
(University of Warwick)
Open-multicommutativity of the probability measure functor.
19-Sep-2005 Taras Banakh
(LNU)
Scheepers' diagram and a question of Zdomskyy.
12-Sep-2005 Taras Banakh
(LNU)
An answer to a question of Plicko about the cardinality of Hamel basis.

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