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Talks at MI SAS

If not specified otherwise all lectures/talks are held in the lecture room of MI SAS, Štefánikova 49, Bratislava, 4th floor (glassy door room near to the entrance).

2017
  • October 27, 2017 at 1.30pm: Dr. Michal Hroch
    Czech Technical University in Prague, Prague, Czechia
    Talk:
    Algebraic and Measure-Theoretic Propertiesof the Structures
    Closed to Boolean Algebras
  • October 26, 2017 at 1.30pm: Assoc. Prof. Roman Frič
    MI SAS, Košice
    Talk:
    Stochastic Channel and Independence
  • October 12, 2017 at 1.30pm: Dominik Lachman
    Palacky University, Olomouc, Czechia
    Talk:
    Bruhat-Tits Buildings
  • October 5, 2017 at 1.30pm: Dr. Jiří Janda
    Masaryk University, Brno, Czechia
    Talk:
    The decomposition of an observable on a complete MV-algebra into the sum
    of a meager one and a sharp one
  • [Beware, the change of the date!]
    June 7, 2017 at 1.30pm: Assoc. Prof. Michal Botur
    Palacky univ., Olomouc, Czech Rep.
    Talk: Operators on Pavelka's algebras induced by fuzzy relations
2016
  • December 8, 2016 at 1.30pm: Dr. Tomasz Tylec
    University of Gdansk, Gdansk, Poland
    Talk: Effect algebras and orthoposets: rigorous framework for no-signaling box models
  • November 22, 2016 at 1.30pm: Martin Plávala
    MI SAS, Bratislava, Slovakia
    Talk:
    All measurements in a probabilistic theory are compatible if and only if
    the state space is a simplex


    Abstract:

    It is long-known that classical systems are characterized by a state space that is a simplex and that for classical systems all measurements are compatible. We will introduce General probabilistic theories (GPT) as the general apparatus describing measurements in both classical and quantum mechanics and we will define the compatibility of measurements in GPT. Restricting ourselves to finite-dimensional state spaces we will formulate the proposition that incompatible measurements in any GPT exist whenever the system is not classical and we will demonstrate several key aspects of the proof of the proposition as well as give further insight on the interpretation of the result, based on some future work.
  • June 23, 2016 at 1.30pm: Dr. Raffaella Carbone
    Dept. of Matematics, Univ. Pavia, Taliansko
    Talk:
    Decoherent markovian evolutions on non-commutative algebras


    Abstract:

    We consider markovian evolutions on (generally non-commutative) von Neumann algebras. The decoherence-free algebra can be seen as a subalgebra of the domain on which the evolution is a *-homomorphism. The interest in studying the decoherence-free algebra stays in its strict relations with many asymptotic and probabilistic properties of the evolution: ergodicity, environmental decoherence, period,... We shall explore these aspects and some main results. We have studied in particular decoherence induced by the environment (as introduced by Blanchard and Olkiewicz, Rev. Math. Phys., 2003) for quantum Markov semigroups. We have proved sufficient and/or necessary conditions for decoherence and we have studied the link with different types of decompositions of the domain.
  • May 31, 2016 at 11.00am: Assoc. Prof. Roman Frič and Assoc. Prof. Martin Papčo
    MI SAS, Košice
    Talk:
    Duality: random variables and observables


    Abstract:

    In generalized probability we encounter three basic maps; probability measures, random variables and observables. While probability measures can be considered as a special case of observables, the relationship between random variables and observables can be described in terms of a categorical duality.
  • April 15, 2016 at 1.30pm: Prof. Pavel Pták
    FEE CTU, Prague, Czech Rep.
    Talk:
    On the Horn-Tarski measure-extension theorem
  • April 12, 2016 at 1.30pm: Dr. Giselle Antunes Monteiro
    MI SAS, Bratislava (SASPRO programme)
    Talk:
    On the distinguishing features of the Kurzweil integral
  • March 30, 2016 at 1.30pm: Assoc. Prof. Roman Frič and Dr. Peter Eliaš
    MI SAS, Košice
    Talk:
    Factorizing observables


    Abstract:

    Categorical approach to probability leads to better understanding of basic notions and constructions in generalized (fuzzy, operational, quantum) probability, where observables - dual notions to generalized random variables (statistical maps) - play a major role. Our goal is to show that two constructions involving observables: representation of generalized random variables via products, resp. smearing of sharp observables, can be described as factorizing a morphism into composition of two morphisms having desired properties.
  • March 15, 2016 at 1.30pm: Dr. Roberto Giuntini
    Univ. Cagliari, Italy
    Talk:
    From sharp to unsharp quantum logic:
    A new look at the effects of a Hilbert space
2015
  • December 10, 2015 at 1.30pm: Mgr. Martin Plávala
    MI SAS, Bratislava
    Talk:
    Stability of Friedmann equation with respect to
    small changes in the density parameter
  • November 19, 2015 at 1.30pm: Assoc. Prof. Martin Kalina
    Faculty of Civil Engineering, Slovak University of Technology, Bratislava, Slovakia
    Talk:
    Paving as a construction method for creating of commutative
    and associative operations on the unit interval
  • October 29, 2015 at 1.30pm: Assoc. Prof. Oľga Nánásiová
    Faculty of Electrical Engineering and Information Technology,
    Slovak University of Technology, Bratislava, Slovakia
    Talk: Bell inequalities and s-maps
  • October 8, 2015 at 1.30pm: Dr. Andrea Zemánková
    MI SAS, Bratislava, Slovakia
    Talk: Uninorms with continuous underlying functions
  • September 24, 2015 at 1.30pm: Dr. Roberto Beneduci
    University Calabria, Rende, Italy
    Talk: Characterization of Commutative POVMs by means of Feller Markov kernels
  • September 22, 2015 at 1.30pm: Assoc. Prof. Roman Frič
    MI SAS, Košice
    Talk: Notes on products of D-posets
  • April 23, 2015 at 1.30pm: Assoc. Prof. Gejza Jenča
    Faculty of Civil Engineering, Slovak University of Technology, Btatislava
    Talk: Quantum logics as monoids in Rel
  • April 09, 2015 at 1.30pm: Prof. Radomír Halaš
    Palacky university, Olomouc, Czech Rep.
    Talk: On clones of aggregation functions on lattices
  • March 12, 2015 at 1.30pm: Jana Havlíčková
    Commenius university, Bratislava
    Talk: Categories of IF and fuzzy events and their relations (in Slovak)
  • February 17, 2015 at 1.30pm: Assoc. Prof. Roman Frič
    MI SAS, Košice
    Talk: Extending of D-posets of fuzzy events (in Slovak)
  • February 11, 2015 at 2.00pm: Assoc. Prof. Jan Kühr
    Palacky univ., Olomouc, Czech Rep.
    Talk: The varietal join of orthomodular lattices and MV-algebras
  • February 11, 2015 at 1.30pm: Assoc. Prof. Michal Botur
    Palacky univ., Olomouc, Czech Rep.
    Talk: A new construction of kites
2014
  • October 2, 2014 at 1.30pm: Assoc. Prof. Roman Frič
    MI SAS, Košice
    Talk: Notes on D-posets (what's new?) (in Slovak)
  • September 18, 2014 at 1.30pm: Dr. Emmanuel Chetcuti
    University of Malta, Malta
    Talk: Equilateral weights on the unit ball of Rn
  • September 18, 2014 at 1.30pm: prof. David Buhagiar
    University of Malta, Malta
    Talk: On κ-compactness, extent and the Lindelof number in LOTS
  • August 28, 2014 at 1.30pm: prof. Michiro Kondo
    Tokyo Denki University, Japan
    Talk: Galois connections on fuzzy structures
  • June 6, 2014 at 1.30pm: Dr. Erkka Haapasalo
    Institute of Theoretical Physics, University of Turku, Turku, Finland
    Talk: Compatibility properties of extreme quantum observables

    Abstract: Recently a problem concerning the equivalence of joint measurability and coexistence of quantum observables was solved [D. Reeb, D. Reitzner, and M. M. Wolf, J. Phys. A: Math. Theor. vol 46, 462002 (2013)]. We generalize two known joint measurability results from sharp observables to the class of extreme observables and study relationships between coexistence, joint measurability, and post-processing of quantum observables when an extreme observable is involved. We also discuss another notion of compatibility and provide a counterexample separating this from the former notions.

  • May 5, 2014 at 1.30pm: Assoc. Prof. Michal Botur
    Palacky University, Olomouc, Czech Rep.
    Talk: Operators induced by fuzzy relations
  • April 10, 2014 at 1.30pm: Dr. Giacomo Lenzi
    University of Salerno, Salerno, Italy,
    Talk: On pseudofinite MV-algebras
  • April 3, 2014 at 1.30pm: Zdeněk Svoboda
    Palacky University, Olomouc, Czech Rep.
    Talk: Interior and closure operators on basic algebras
  • February 24, 2014 at 1.30pm: Prof. Helmut Länger
    Institute for Algebra and Discrete Mathematics, TU Vienna
    Talk: A non-associative generalization of effect algebras
2013
  • November 21, 2013 at 1.30pm: Jiří Janda
    Masaryk University, Brno, Czech Rep.
    Talk: On bilinear forms from the point of view of generalized effect algebras
  • November 14, 2013 at 1.30pm: Prof. Claudio Garola
    University of Lecce, Lecce, Italy
    Talk: Embedding quantum mechanics into a broader noncontextual theory: recent developments in the ESR model
  • November 7, 2013 at 1.30pm: Tomasz Tylec
    Institute of Theoretical Physics and Astrophysics, University of Gdańsk, Gdańsk, Poland
    Talk: So-called non-signalling boxes from the point of view of quantum logics
  • October 24, 2013 at 1.30pm: Assoc. Prof. Oľga Nánásiová
    Institute of Computer Science and Mathematics, FEEIT Slovak University of Technology, Bratislava
    Talk: Non-compatibilty and multidimensional states
  • October 10, 2013 at 1.30pm: Assoc. Prof. Roman Frič
    MI SAS Košice, Košice
    Talk: About cogenerators and generalized probability theory
  • June 27, 2013 at 1.30pm: Prof. Jan Hamhalter
    Electrotechnical Faculty ČVUT, Prague, Czech rep.
    Talk: Commutative structures in noncommutative operator algebra
  • June 20, 2013 at 1.30pm: Dr. Sergejs Solovjovs
    Masaryk Univesity, Brno, Czech Rep.
    Talk: Monoidal topology and its applications
  • June 13, 2013 at 1.30pm: Dr. Michal Sedlák
    Institute of Physics of SAS, Bratislava
    Talk: Optimal discrimination of quantum measurement
  • June 6, 2013 at 1.30pm: Assoc. Prof. Gejza Jenča
    Faculty of Civil Engineering of Slovak University of Technology, Bratislava
    Talk: Poset homology and linear extensions
  • May 30, 2013 at 0.30pm: Dr. Mário Ziman
    Institute of Physics of SAS, Bratislava
    Talk: Structure of entanglement-breaking and entanglement-annihilating channels
  • May 9, 2013 at 1.30pm: Assoc. Prof. Jan Paseka
    Masaryk University, Brno, Czech Republic
    Talk: Semistates on MV-algebras
  • May 2, 2013 at 1.30pm: Dr. Anna Jenčová
    Mathematical Institute of SAS, Bratislava
    Talk: Distinguishing quantum channels by restricted testers
  • April 11, 2013 at 1.30pm: Prof. Dénes Petz
    Budapest University of Technology and Economics;
    A. Rényi Math. Institute, HAS, Budapest
    Talk: Some inequalities in probabilities and matrices
  • April 4, 2013 at 1.30pm: Dr. Marek Hyčko
    Mathematical Institute SAS, Bratislava
    Talk: Generalized pre pseudo effect algebras
  • March 21, 2013 at 1.30pm: Prof. Michiro Kondo
    Tokyo Denki University, Japan
    Talk: Bosbach states on residuated lattices
  • [Change of date] February 13, 2013 at 1.30pm: Dr. Miroslav Kolařík
    Univ. Olomouc, Czech Rep.
    Talk: Every skew effect algebra can be extended into a total algebra
2012
  • October 11, 2012 at 1.30pm: Dr. M. Botur
    Univ. Olomouc, Czech Rep.
    Talk: Tense Operators on MV -algebras
  • October 4, 2012 at 1.30pm: J. Janda
    Masaryk University, Brno, Czech Rep.
    Talk: Partial groups of linear operators densely defined on a Hilbert space.
  • September 27, 2012 at 1.30pm: Assoc. Prof. M. Kalina
    Department of Mathematics and Descriptive Geometry, Faculty of Civil Engineering, Slovak University of Technology
    Talk: Conditioning on lattice effect algebras.
  • September 13, 2012 at 1.30pm: Assoc. Prof. R. Frič
    Branch of Mathematical Institute, Slovak Academy of Sciences, Košice
    Talk: On generalizations of fuzzy probabilities (in Slovak).
  • August 30, 2012 at 1.30pm: Dr. A. Zemánková
    Mathematical Institute, Slovak Academy of Sciences, Bratislava
    Talk: Extensions of the Choquet integral used in Classification and Multipolarity Algebras.
  • June 28, 2012 at 1.30pm: Prof. J. Rachůnek
    Fac. Natural Sciences, Palacky University, Olomouc, Czech Republic
    Talk: State Basic algebras.
  • April 19, 2012 at 2.30pm: Prof. J. Pykacz
    University of Gdansk, Gdansk, Poland
    Talk: Fuzzy models of quantum probability.
  • April 19, 2012 at 1.30pm: Prof. R. Halaš
    Fac. Natural Sciences, Palacky University, Olomouc, Czech Republic
    Talk: Tolerance factorable varieties.
  • April 12, 2012 at 1.30pm: Assoc. Prof. J. Kühr
    Fac. Natural Sciences, Palacky University, Olomouc, Czech Republic
    Talk: On varieties of distributive effect algebras.
  • March 29, 2012 at 1.30pm: Dr. A. Jenčová
    MI SAS, Bratislava
    Talk: Generalized POV measures and measurements on quantum channels III.
  • March 22, 2012 at 1.30pm: Dr. A. Jenčová
    MI SAS, Bratislava
    Talk: Generalized POV measures and measurements on quantum channels II.
  • March 15, 2012 at 1.30pm: Dr. A. Jenčová
    MI SAS, Bratislava
    Talk: Generalized POV measures and measurements on quantum channels I.
  • March 8, 2012 at 1.30pm: Dr. M. Hyčko
    MI SAS, Bratislava
    Talk: Pre pseudo effect algebras - theory and the search for finite models
  • February 23, 2012 at 1.30pm: J. Krňávek
    Univ. Olomouc, Czech Rep.
    Talk: Skew residuated lattices
  • February 16, 2012 at 1.30pm: Assoc. Prof. R. Frič
    MI SAS, Košice
    Talk: Probability - from classical to fuzzy
  • February 9, 2012 at 1.30pm: Dr. M. Botur
    Univ. Olomouc, Czech Rep.
    Talk: A general approach to state-morphism algebras
  • December 12, 2011 at 1.30pm: Prof. R. Giuntini
    Univ. Cagliari, Italy
    Talk: The algebraic structure of an approximately universal system of quantum computational gates
  • December 8, 2011 at 1.30pm: Prof. Marisa Dalla Chiara
    Univ. Florence, Italy
    Talk: Quantum teleportation and quantum epistemic semantics
  • November 24, 2011 at 1.30pm: Prof. Richard Ball
    University of Denver, Denver, USA
    Talk: Truncated and diminished vector lattice
  • October 20, 2011 at 1.30pm: Prof. Zdenka Riečanová
    FEI STU, Bratislava, Slovakia
    Talk: Operator (Generalized) Effect Algebras
  • September 29, 2011 at 1.30pm: Prof. Antonio Di Nola
    Salerno University, Salerno, Italy
    Talk: New Results on MV-algebras
  • September 14, 2011 at 2.15pm: Prof. Richard Ball
    University of Denver, Denver, USA
    Talk: The Pointfree Daniell Integral
  • September 14, 2011 at 1.00pm: Prof. Rodney Nillsen
    School of Math. and Appl. Statistics, University of Wollongong, New South Wales, Australia
    Talk: Dynamical systems and the Carathéodory definition of measurable sets
  • June 30, 2011 at 2pm: Prof. Gennadij A. Ososkov
    Joint Institute of Nuclear Research, Dubna, Russia
    Talk: Wavelet applications for finding hidden features of experimental data
  • June 23, 2011 at 2pm: Dr. Tomasz Kowalski
    University of Melbourne, Australia
    Talk: Quasi-subtractive varieties
  • May 13, 2011 at 1.30pm: Dr. Agata Ciabattoni
    TU Vienna, Austria
    Talk: Systematic and Algebraic Proof Theory for Substructural Logics
  • May 5, 2011 at 1.30pm: Mgr. Anna Jenčová, PhD.
    Mathematical Institute SAS, Bratislava, Slovakia
    Talk: On reversibility of quantum operations
  • April 28, 2011 at 1.30pm: Mgr. Michal Botur, PhD.
    Palacky University, Olomouc, Czech Republic
    Talk: Finite distributive lattices with antitone involutions
  • April 21, 2011 at 2.30pm: doc. RNDr. Ferdinand Chovanec, CSc.
    Armed Forces Academy of general M. R. Štefánik, Liptovský Mikuláš, Slovakia
    Talk: Graphic representation of MV-algebra pastings
  • April 21, 2011 at 1.30pm: Dr. Yongjian Xie
    Shaanxi Normal University, Xian, Shaanxi, China
    Talk: The pasting of lattice ordered effect algebras
  • April 18, 2011 at 1.00pm: Prof. Zbigniew Piotrowski
    Department of Mathematics and Statistics, University of Youngstown, U.S.A.
    Talk: On quasi-continuity and cliquishness
  • April 14, 2011 at 1.30pm: Mgr. Miroslav Kolařík, PhD.
    Palacky University, Olomouc, Czech Republic
    Talk: Computer proofs
  • April 7, 2011 at 1.30pm: Mgr. Elena Vinceková, PhD.
    Mathematical Institute SAS, Bratislava, Slovakia
    Talk: Lattice pseudo-effect algebras as double residuated structures