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 seminar
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, 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 seminar
lecture)
Institut für Diskrete Mathematik
und Geometrie, Technische Universität Wien
June 17, 2008
51. Finite-level full dualities and coloured ordered sets (invited seminar
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
63. Prvočísla a ich číselní príbuzní (in Slovak,
talk)
Natural Sciences Colloquium, M Bel University, Banská Bystrica
December 7, 2012
64. Canonical extensions of
bounded lattices (invited seminar lecture)
Mathematical
Institute, Slovak Academy
of Sciences, Bratislava
January
17, 2013
65. Canonical extensions
of lattices (plenary
speaker)
86th Workshop on General Algebra, Olomouc,
Czech Republic,
May 30-June 2, 2013
66. Canonical extensions
of bounded lattices (plenary speaker)
General Algebra and Its Applications (GAIA 2013),
Melbourne, Australia
July
15-19, 2013
67. A new construction
of canonical extensions of lattices (invited seminar lecture)
Centro de Algebra da Universidade
de Lisboa, Lisbon, Portugal
August 30, 2013
68. Canonical extensions of lattices - a new construction (invited seminar lecture)
Institut für Diskrete Mathematik
und Geometrie, Technische Universität Wien,
Austria
September 10, 2013
69. Full Natural
Dualities I (invited seminar lecture)
Olomouc Algebra Seminar,
Palacki University Olomouc,
Czech Republic
April 8,
2014
70. Full Natural
Dualities II (invited seminar lecture)
Olomouc Algebra Seminar,
Palacki University Olomouc,
Czech Republic
April 9,
2014
71. A new setting for duals
of canonical extensions of bounded lattices (talk)
8th
Australia-New Zealand Mathematics Convention (8ANZMC), Melbourne, Australia
December 8-12, 2014
72. TiRS graphs and TiRS frames: a new setting for duals
of canonical extensions (plenary speaker)
5th
Algebra and Substructural Logics (5ASubL), Melbourne, Australia
December 13-16, 2014
73. Zväzové problémy: Od Dedekinda
cez Kolibiara a Riečana k Shelahovi (in
Slovak, talk)
Mathematical
Colloquium, M Bel University, Banská Bystrica, Slovakia
May 12, 2015
74. TiRS graphs
and TiRS frames: a new setting for duals
of canonical extensions of lattices (talk)
Topology,
Algebra and Categories in Logic (TACL) 2015, Ischia, Italy
June
21-26, 2015
75. Prvočísla a ich číselní príbuzní (in Slovak, talk)
Olomouc Didactic
Seminar, Palacki University Olomouc, Czech Republic
April 25,
2016
76. A new setting for duals of canonical
extensions of lattices (talk)
XXI Coloquio
Latinoamericano de Álgebra, B. Aires, Argentina
July
25-29, 2016
77. Infinite lattices,
dualities of algebras and quantum logics (professorial inaugural lecture)
Faculty
of Mathematics, Physics and
Informatics, Comenius University, Bratislava
April 10,
2017
78. Canonical extensions of lattices and lattice duals (invited seminar lecture)
Institut für Diskrete Mathematik
und Geometrie, Technische Universität Wien,
Austria
October
6, 2017
79. Eight-thousanders of Number Theory (talk)
Olomouc Didactic
Seminar, Palacki University Olomouc, Czech Republic
November 28, 2017
80. Canonical extensions
of lattices are more than perfect (invited lecture)
95 Arbeitstagung
Allgemeine Algebra, Faculty of Mathematics,
Physics and Informatics, Comenius University, Bratislava
February
9, 2018
81.-82. Osemtisícovky teórie
čísel (talk
in Slovak)
Faculty Open Day, M Bel
University, Banská Bystrica, Slovakia
November 7, 2018 and February 13, 2019
83. Canonical extensions
of lattices are more than perfect (invited seminar lecture)
Universidade de Lisboa, Lisbon, Portugal
September 9, 2019
84. Dualities for prioritised default bilattices II (talk)
Australian
Algebra Conference 4 (online), University of Melbourne,
January
18-19, 2021
85. Dualities for prioritised default bilattices II (talk)
100 Arbeitstagung
Allgemeine Algebra (online), Jagiellonian
University,
Krakow, Poland
February
5-7, 2021
86. Dualities for bilattices and their
applications (invited
seminar lecture)
Institut für Diskrete Mathematik
und Geometrie, Technische Universität Wien, Austria
June 10,
2022