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
La Trobe University Mathematics Seminar,
Melbourne, Australia, October 1999 (lecture)
30. A new method for strong dualitites
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
La Trobe University, Melbourne, Australia,
Seminar on General Algebra and its Applications, December 2003 (lecture)
Centro de Algebra da Universidade de
Lisboa, Lisbon, Portugal, July 2004
37.
Institute for Advanced Study, La Trobe
University, Melbourne, Australia (lecture)
38.
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, Melbourne, Australia
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