1. Congruence lattices of lattices
VII. Universal Algebra Symposium, Przysiek, Poland, May 1990 (talk)
2. Affine complete distributive p-algebras
Symposium in Universal Algebra to the 80-th birthday of G. Birkhoff, Darmstadt,
Germany, June
1991 (talk)
3. On affine completeness of p-algebras
Workshop on General Algebra, Vienna, Austria, June 1992 (talk)
4. On splitness in the subvariety lattice of Brouwerian algebras
Conference of Young Algebraists,
Potsdam, Germany, May 1992 (talk)
5. On affine completeness of Stone algebras
Conference on Lattices, Ordered Sets and Universal Algebra, Szeged, Hungary, August 1993 (talk)
6. Affine complete algebras
Mathematical Institute, University of Oxford, UK, November
1993 (lecture)
7. Affine complete Stone algebras
Mathematical Institute, University of Oxford, UK, 1993 (seminar talk)
8. Galois theory for
Post algebras
Mathematical Institute, University of Oxford, UK,1993 (seminar talk)
9.-11. Affine
complete Stone algebras
University of Glasgow, UK, May 1994 (lecture)
Technical University, Vienna, Austria, June 1994 (lecture)
Conference on Ordered Structures and Universal Algebra, Budapest, Hungary, June 1994 (talk)
12. Endoprimal
distributive lattices are endodualisable
Workshop on General Algebra, Linz, Austria, June 1994 (talk)
13. Natural duality theory: The Entailment Problem
International Congress of Mathematicians,
Zurich, Switzerland, August
1994 (poster)
14.-15. Extension of Birkhoff's
duality to the class of all partially
ordered sets
Mathematical Institute, University of Oxford, UK,
June1996 (seminar lecture)
Conference in Universal Algebra, Szeged, Hungary, July 1996 (talk)
16. Affine
completeness of Kleene algebras
Technical University, Vienna, Austria, 1996 (lecture)
17.-20. Order-polynomially
completeness of lattices
ORDAL, Ottawa, Canada,
August 1996 (talk)
Summer School in Algebra, Liptovsky Jan,
Slovakia, September 1996 (talk)
Conference on Discrete Mathemtics in Banach Centre, Warszaw, Poland, October 1996 (talk)
Janos Bolyai University Szeged, Hungary, January 1997 (lecture)
21.-23. Finitely
generated free modular ortholattices
Workshop on General Algebra, Klagenfurt,
Austria, June1997 (talk)
Summer School in Algebra, Strbske Pleso,
Slovakia, September 1997 (talk)
Palacky University, Olomouc, Czech Republic, November 1997 (lecture)
24. Endodualisable and endoprimal double Stone algebras
Worshop on General Algebra, Olomouc, Czech Republic, June 1998 (talk)
25. A criterion for a finite endoprimal algebra to be endodualisable
Conference on Lattices and Universal Algebra, Szeged, Hungary, August 1998 (talk)
26. Order-polynomial
completeness of lattices
16 th Victorian Algebraic Conference, Melbourne, Australia,
November 1998 (talk)
27. Finitely
generated free modular ortholattices
43 rd Annual Australian Mathematical Society Conference: Joint Meeting
with the American Mathematical
Society, Melbourne, Australia, July
1999 (talk)
28. Extension
of Birkhoff's duality alternative to Priestley's
duality
17 th Victorian Algebraic Conference, Melbourne, Australia,
July 1999 (talk)
29. On polynomial
completeness of lattices and abstract representations of free
modular ortholattices
First Southern African Summer School and Workshop on Logic, Universal
Algebra and Theoretical Computer Science, Johannesburg, South Africa, December 1999 (talk)
31. An
efficient transfer of strong dualitites
The Czech-Polish mathematical school, Ústí nad Labem, Czech Republic, June 2001 (talk)
32. The
„Full vs. Strong“ Problem in duality theory
Workshop on General Algebra, Linz, Austria, June 2001 (talk)
33. Standard topological quasi-varieties - examples and problems
Conference on Universal Algebra and Lattice Theory, Szeged, Hungary, July 2002 (talk)
34. Order-polynomial completeness of lattices and
related problems
Lattices, Universal Algebra
and Applications, Lisbon, Portugal, May 28-30, 2003 (invited plenary speaker)
35. Distributive lattices
- compatible functions and affine completeness
36. Compatible
functions on distributive lattices - on a Problem of G. Gratzer
Centro de Algebra da Universidade de Lisboa, Lisbon,
Portugal, July 2004 (invited lecture)
37. Order-polynomial completeness
of lattices and related problems
Institute for Advanced Study,
38. Compatible functions on distributive
lattices
Summer School in Algebra, Mala Moravka, Czech Republic, September 2004 (talk)
39. When is a full duality strong? (talk)
Workshop on General Algebra, Technical University Vienna, Austria
May 26 - 29, 2005
40. Congruence-preserving functions
on distributive lattices (talk)
Conference
on Universal Algebra and Lattices,
University of Szeged, Hungary
July 3 – 8, 2005
41. Birkhoffˇs duality extended
to all posets I (lecture)
Seminar on
General Algebra and Its Applications, Mathematics
department,
November 3, 2005
42. Birkhoffˇs duality extended
to all posets II (lecture)
Seminar on General Algebra and Its Applications, Mathematics
department,
November 8, 2005
43. Congruence-preserving functions
on distributive lattices (talk)
24th Victorian Algebra
Conference, Daekin University, Melbourne, Australia,
November 27 - 28, 2006
44. Compatible functions
on distributive lattices. The extension theorem
(lecture)
Seminar on General Algebra and Its Applications, Mathematics
department,
November 29, 2006
45. Compatible functions
on distributive lattices. The classification theorem (lecture)
Seminar on General Algebra and Its Applications, Mathematics
department,
November 30, 2006
46. Canonical extensions
of Stone and double Stone algebras: the natural
way (talk)
73th Workshop on General Algebra, Klagenfurt,
Austria
February 1-4, 2007
47. Canonical extensions
of Stone algebras: the natural way
(plenary speaker)
International Conference on Order, Algebra and Logics, Nashville, USA
June 12-16, 2007
48. Canonical extensions of
distributive-lattice expansions (talk)
51th Annual Meeting of Australian Mathematical Society,
September 25-28, 2007
49. Studying
full dualities via coloured ordered
sets (talk)
75th Workshop on General Algebra, Darmstadt,
Germany
November 1-4, 2007
50. Full dualities
and coloured ordered sets (invited lecture)
Institut für Diskrete Mathematik
und Geometrie, Technische Universität Wien
June 17, 2008
51. Finite-level full
dualities and coloured ordered sets (invited
lecture)
Universidade de Lisboa, Lisbon,
Portugal
August 28, 2008
52. Fermat’s Last
Theorem in romantic mathematics (talk)
7th joint Australia-New Zealand Mathematics Convention, University
of Canterbury, Christchurch, New Zealand
December 7-12, 2008
53. The lattice of finite-level full dualities: combinatorial aspects (talk)
The Fourth International Conference on Combinatorial Mathematics
Auckland, New Zealand
December 15-19, 2008
54.-58. Prvočísla
a ich číselní príbuzní (in Slovak, talk)
·
Gymnázium
Andreja Kmeťa, Banská Štiavnica, October 27,
2009
·
Science and Research Institute,
M. Bel University, November
3, 2009
·
41th
Annual conference of Slovak mathematicians,
Jasná, November 29, 2009
·
Faculty of Mathematics
and Physics, Comenius University, Bratislava, December 7, 2009
·
Mathematical Colloquium, M Bel
University, Banská Bystrica, December 15, 2009
59. Transferral of entailment in duality theory (talk)
79th Workshop on General Algebra, Olomouc, Czech
Republic
February 11-14, 2010
60. Full dualisability
is independent of the generating
algebra (talk)
The Second
International Conference on Order, Algebra, and Logics, Jagiellonian University,
Krakow, Poland
June 6-10, 2011
61. Full natural
dualities (invited speaker)te
Workshop on Duality Theory,
Mathematical Institute,
August 2-3, 2011
62. A fresh
perspective on canonical extensions of bounded
lattices (talk)te
29th Victorian algebra conference,
December 1-2, 2011