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Alexander Shostak's Workshop Hosted at the University of Latvia in Riga |
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Autumn Workshop 2011
Place: Department of Mathematics, University of Latvia — Zellu 8, Riga
Time: Weekly on Wednesday, usually at 16.30
| September 28 | Oppening of the Autumn seminar section; Review of the summer conferences:AGOP2011, EUSFLAT2011 |
| October 5 | Alexander Elkin Workshop RST-2011 (Rough Set Theory: Milan, Italy, September 14-16): impressions on the workshop and a review of some presentations |
| October 12 | Olga Grigorenko Presentation of Disseration Results |
| October 26 | Vechislav Ruzha Presentation of Disseration Results |
| November 09 | Olga Grigorenko On some applications of Type-2 fuzzy sets |
| November 16 | Vildan Cetkin On soft fuzzy closure and interior operators: Part I |
| November 23 | Martin Kalina Comparison of Lehrer integral with Choque and Lebesque integrals |
| November 30 | Vildan Cetkin On soft fuzzy closure and interior operators: Part II |
| December 07 | Sergejs Solovjovs Quantale algebras as a generalization of lattice-valued frames (.pdf file) |
| December 14 | Sergejs Solovjovs Topological categories versus categorically-algebraic topology (.pdf file) |
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Spring Workshop 2011
Place: Department of Mathematics, University of Latvia — Zellu 8, Riga
Time: Weekly on Thursday, usually at 18.00
| February 10 | Olga Grigorenko and Pavels Orlovs Review of 10th International Conference on Applied mathematics (APLIMAT2011) |
| February 17 | Alexander Elkin Algebraic operations with relations on a set and corresponding rough approximation operators |
| February 24 | Olga Grigorenko On aggregation of fuzzy relations |
| March 3 | Svetlana Komara On type-2 fuzzy numbers |
| March 10 | Workshop in conjunction with the 69th Annual scientific conference of University of Latvia (See Activities) |
| March 17 | Workshop is canceled |
| March 24 | Sergejs Solovjovs Brief account of several conferences on algebra (.pdf file) |
| March 24 | Diana Dance An analysis of fuzzy matrix games |
| May 12 | Sergejs Solovjovs On some properties of the category of extended-order algebras (.pdf file;.tex file) |
| May 19 | Sergejs Solovjovs Categorically-algebraic topological theories (.pdf file) |
| May 28 | Workshop in conjunction with the 16th International Conference Mathematical Modelling and Analysis (See Activities) |
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Autumn Workshop 2010
Place: Department of Mathematics, University of Latvia — Zellu 8, Riga
Time: Weekly on Tuesdays, usually at 18.00
| September 28 | Banu Pazar (Phd student of Kocaeli University) Some remarks on soft sets and related topologies |
| October 05 | Workshop is canceled |
| October 12 | Olga Grigorenko Review of 2010 IEEE World Congress on Computational Intelligence |
| October 19 | Julija Lebedinska "Fuzzy matrices and generalized aggregation operators: theoretical foundations and possible applications" |
| October 27 | Julija Lebedinska Presentation of Disseration Results |
| November 02 | Sergejs Solovjovs Extended-order algebras as a generalization of partially ordered sets (.pdf file) |
| November 09 | Workshop is canceled |
| November 16 | Workshop is canceled |
| November 23 | Banu Pazar On fuzzy soft rings (.pdf file) |
| November 30 | Sergejs Solovjovs Lattice-valued categorically-algebraic topology (.pdf file) |
| December 15 (18.00) | Prof. Lawrence Michael Brown (Hacettepe University, Ankara, Turkey) Realcompactness and realcompactifications of ditopological texture spaces |
| December 16 (14.30) | Irina Zvina Presentation of Disseration Results (.pdf file) |
| December 17 (13.00) | Assoc. Prof. Javier Gutiérrez García (Universidad del Pais Vasco, Bilbao, Spain) On lattice-valued frames (.pdf file) |
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Spring Workshop 2010
Place: Department of Mathematics, University of Latvia — Zellu 8, Riga
Time: Weekly on Thursdays, usually at 18.00
| February 26 | Irina Zvina Frame embedding modulo ideal: extension to compatible ideal |
| March 4 | Workshop in conjunction with the 68th Annual scientific conference of University of Latvia (See Activities) |
| March 11 (16.30) | Julija Lebedinska Presentation of Disseration Results: "Fuzzy matrices and generalized aggregation operators: theoretical foundations and possible applications" |
| March 18 | Informative workshop for master students |
| March 26 | Workshop is canceled |
| April 1 | Olga Grigorenko Additive generators |
| April 8 | Workshop in conjunction with the 8th Latvian Conference of Mathematics (See Activities) |
| April 12 (15.00) | Irina Znina Presentation of Disseration Results: "Topologies modulo compatible ideals: set-theoretical study and representation in locale theory" |
| April 22 | Pavels Orlovs Triangular functions |
| April 29 | Olga Grigorenko Ordinal sums |
| May 20 | Sergejs Solovjovs Dual attachment pairs in categorically-algebraic topology |
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Autumn Workshop 2009
Place: Department of Mathematics, University of Latvia — Zellu 8, Riga
Time: Weekly on Thursdays, usually at 18.00
| September 17 | Vechislav Ruzha Review 2009 IFSA World Congress & 2009 EUSFLAT Conference |
| September 24 | Prof. Alexander Shostak Some personal reflections on the 2nd International Conference on Topology and Applications, Hacettepe University, Ankara, Turkey, 2009. Part I. |
| October 1 | Prof. Alexander Shostak Some personal reflections on the 2nd International Conference on Topology and Applications, Hacettepe University, Ankara, Turkey, 2009. Part II. |
| October 8 | Olga Grigorenko Fuzzy monotonicity |
| October 15 | Julija Lebedinska Fuzzy matrices |
| October 22 | Irina Zvina Generalized spacial locales I |
| October 29 | Julija Lebedinska Generalized aggregation and T-extension as a special case I |
| November 5 | Juris Breidaks Combined interpolatiny-smoothing splines |
| November 12 | Julija Lebedinska Generalized aggregation and T-extension as a special case II |
| November 19 | Workshop is canceled |
| November 26 | Irina Zvina Generalized spacial locales II |
| December 3 | Workshop is canceled |
| December 10 | Olga Grigorenko Degree of monotonicity in aggregation process |
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Spring Workshop 2009
Place: Department of Mathematics, University of Latvia — Zellu 8, Riga
Time: Weekly on Thursdays, usually at 18.00
| February 19 | Prof. Alexander Shostak Review 30th Linz Seminar on Fuzzy Set Theory |
| February 26 | Prof. Alexander Shostak Review 30th Linz Seminar on Fuzzy Set Theory: Aggregation Operators I |
| March 5 | Prof. Alexander Shostak Review 30th Linz Seminar on Fuzzy Set Theory: Aggregation Operators II |
| March 12 | Round Table Discussions |
| March 19 | Dr. Ingrida Uljane On Some Categories of L-valued Sets and Many-valued Topologies |
| April 2 | Olga Grigorenko Fuzzy Partial Order Relation and Fuzzy POS Category |
| April 16 | Olga Grigorenko Fuzzy Order Relation: Real world example |
| April 23 | Aleksandrs Elkins Rough Sets |
| April 30 | Modris Berzins Stock Market Prediction Model Using Rough Sets Approach |
| May 7 | Liene Drava Separation Degrees in Fuzzy Topological Spaces |
| May 14 | Vechislav Ruzha Special Collections of Fuzzy Sets |
| May 21 | Prof. Eberhard Oeljeklaus (University of Bremen, Germany) Mathematical methods in Cryptography and Coding Theory |
| May 30 | Off-site workshop in conjunction with the 14th International Conference Mathematical Modelling and Analysis (See Activities) |
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Extended workshop "Generalized sets and related topological structures"
Place: Room 233, Department of Mathematics, University of Latvia — Zellu 8, Riga
Date: January 16, 2009
| 10.30—10.35 | Openning of the seminar |
| 10.35—11.00 | Julija Lebedinska (University of Latvia) gamma-AGOPS and some aspects of its generalized extension |
| 11.00—11.45 | Irina Perfilieva (University of Ostrava, Czech Republic) Theory of fuzzy transform: where fuzzy and classical models meet |
| 11.45—12.15 | Coffee break |
| 12.15—12.45 | Vilem Novak (University of Ostrava, Czech Republic) Analysis of periodical time series using soft computing methods |
| 12.45—13.30 | Jouni Jarvinen (Turku University, Finland) Rough sets determined by quasiorders |
| 13.30—14.30 | Lunch |
| 14.30—15.00 | Irina Zvina (University of Latvia) i-Locales |
| 15.00—15.30 | Coffee break |
| 15.30—16.00 | Mati Abel (University of Tartu, Estonia) Representations of topological algebras by projective limits |
| 16.00—16.30 | Mart Abel (University of Tartu, Estonia) On module bundles and topological K-theory |
| 16.30—17.00 | Jaan Vajakas (University of Tartu, Estonia) Some generalizations of the Hewitt extension |
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Extended workshop "Joint Tartu-Riga seminar in pure mathematics"
Place: Room 233, Department of Mathematics, University of Latvia — Zellu 8, Riga
Date: 25-26 November, 2005
25 November (Friday)
| 15.00—15.30 | Prof. Mati Abel (University of Tartu) Different spectra of elements in topological algebras |
| 15.30—16.00 | Mart Abel (University of Tartu) Galbed algebras and spaces |
| 16.00—16.30 | Sergejs Solovjovs (University of Latvia) From quantale modules to topological spaces |
| 16.30—16.45 | Coffee break |
| 16.00—16.30 | Prof. Alexander Shostak (University of Latvia) CLP-compact spaces: some old and some new results |
| 16.00—16.30 | Irina Zvina (University of Latvia) i-Topological spaces: representation of distributive lattices |
| 16.00—16.30 | Ass. Prof. Jānis Cīrulis (University of Latvia) Pseudocomplementation in semiring-like logics |
26 November (Saturday)
| 10.30—11.00 | Annemai Mölder (University of Tartu) Boundedness of superposition operators on some sequence spaces |
| 11.00—11.30 | Olga Panova (University of Tartu) Structure of closed ideals in several classes of real Gelfand-Mazur algebras |
| 11.30—12.00 | Lauri Tart (University of Tartu) Geometric morphisms for S-posets |
| 12.00—12.30 | Ass. Prof. Kalle Kaarli (University of Tartu) Equationally compact commutative semigroups |
| 12.30—13.30 | Lunch |
| 16.00—16.30 | Ass. Prof. Svetlana Asmuss, Vjačeslavs Ruža (University of Latvia) On a concept of a fuzzy-valued measure |
| 16.00—16.30 | Ingrīda Uļjane (University of Latvia) On an L-valued equality on a power set of a many-valued set |
| 16.00—16.30 | Olga Ļebedeva (University of Latvia) A construction of a fuzzy OS-category |
| 16.00—16.30 | Jānis Buls (University of Latvia) Universal machines |
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