- S. Solovjovs, H. Herrlich,
*Tensor Product in the Category JCPos*, 69th Workshop on General Algebra/20th Conference for Young Algebraists, March 18 - 20, 2005, Potsdam, Germany. - S. Solovjovs,
*On the Category M-JCPos*, Summer School on General Algebra and Ordered Sets 2005, September 5 - 10, 2005, Mala Moravka, Czech Republic.

- S. Solovjovs,
*Completion of Partially Ordered Sets*, 71st Workshop on General Algebra/21st Conference for Young Algebraists, February 9 - 12, 2006, Bedlewo, Poland. - S. Solovjovs,
*Categories of Lattice-Valued Sets as Categories of Arrows*, Summer School on General Algebra and Ordered Sets 2006, September 3 - 9, 2006, Radejov, Czech Republic.

- S. Solovjovs,
*A Note on Nuclei of Quantale Algebras*, 73rd Workshop on General Algebra/22nd Conference for Young Algebraists, February 1 - 4, 2007, Klagenfurt, Austria. - S. Solovjovs,
*From Quantale Qlgebras to Topological Spaces*, 74th Workshop on General Algebra, June 7 - 10, 2007, Tampere, Finland. - S. Solovjovs,
*A Representation Theorem for Quantale Algebras*, International Conference on Order, Algebra, and Logics/22nd annual Shanks Lectures, June 12 - 16, 2007, Nashville, Tennessee, USA. - S. Solovjovs,
*On Coproducts of Quantale Algebras*, Conference on Semigroups, Acts and Categories with Applications to Graphs, June 27 - 30, 2007, Tartu, Estonia. - S. Solovjovs,
*A Representation Theorem for Quantale Algebroids*, Summer School on Algebra and Ordered Sets 2007, September 2 - 7, 2007, Tale, Slovakia. - S. Solovjovs,
*On Fuzzification of Algebraic and Topological Structures*, 5th Conference of the European Society for Fuzzy Logic and Technology, September 11 - 14, 2007, Ostrava, Czech Republic. - S. Solovjovs,
*Quantifiers on Quantale Algebras*, 75th Workshop on General Algebra/23rd Conference for Young Algebraists, November 2 - 4, 2007, Darmstadt, Germany.

- S. Solovjovs,
*Sobriety and Spatiality in Varieties of Algebras*, International Conference on Topological Algebras and their Applications (ICTAA) 2008, January 24 - 27, 2008, Tartu, Estonia. - S. Solovjovs,
*On a Generalization of Goguen's Category Set(L)*, 9th International Conference on Fuzzy Set Theory and Applications (FSTA 2008), February 4 - 8, 2008, Liptovsky Jan, Slovak Republic. - S. Solovjovs,
*From Quantale Algebroids to Topological Spaces*, 29th Linz Seminar on Fuzzy Set Theory, February 12 - 16, 2008, Linz, Austria. - S. Solovjovs,
*On Monadic Quantale Algebras*, Applications of Algebra XII, March 3 - 9, 2008, Zakopane, Poland. - S. Solovjovs,
*Sobriety and Spatiality in Varieties of Algebras*, 76th Workshop on General Algebra, May 22 - 25, 2008, Linz, Austria. - S. Solovjovs,
*Variable-Basis Topological Systems*, International Category Theory Conference 2008, June 22 - 28, 2008, Calais, France. - S. Solovjovs,
*Localification of Variable-Basis Topological Systems*, Summer School on General Algebra and Ordered Sets 2008, August 31 - September 6, 2008, Trest, Czech Republic.

- S. Solovjovs,
*Embedding Topology into Algebra*, 30th Linz Seminar on Fuzzy Set Theory, February 3 - 7, 2009, Linz, Austria. - S. Solovjovs,
*Limits and Colimits of Variable-Basis Topological Systems*, Applications of Algebra XIII, March 9 - 15, 2009, Zakopane, Poland. - S. Solovjovs,
*Fuzzy Algebras as a Framework for Fuzzy Topology*, 77th Workshop on General Algebra/24th Conference for Young Algebraists, March 20 - 22, 2009, Potsdam, Germany. - S. Solovjovs,
*On a Generalization of the Concept of State Property System*, 78th Conference on General Algebra, June 11 - 14, 2009, Bern, Switzerland. - S. Solovjovs,
*On a Coalgebraic Category of Variety-Based Topological Systems*, Topology, Algebra and Categories in Logic (TACL 2009), July 7 - 11, 2009, Amsterdam, The Netherlands. - S. Solovjovs,
*Generalized Fuzzy Topology versus Non-Commutative Topology*, Summer School on General Algebra and Ordered Sets 2009, September 5 - 11, 2009, Stara Lesna, Slovak Republic.

- S. Solovjovs,
*Composite Variety-Based Topological Theories*, 10th International Conference on Fuzzy Set Theory and Applications (FSTA 2010), February 1 - 5, 2010, Liptovsky Jan, Slovak Republic. - S. Solovjovs,
*Powerset Operator Foundations for Categorically-Algebraic Fuzzy Set Theories*, 31st Linz Seminar on Fuzzy Set Theory, February 9 - 13, 2010, Linz, Austria. - S. Solovjovs,
*Categorically-Algebraic Frameworks for Priestley Representation Theory*, 79th Workshop on General Algebra, February 12 - 14, 2010, Olomouc, Czech Republic. - S. Solovjovs,
*Categorically-Algebraic Dualities*, Applications of Algebra XIV, March 8 - 14, 2010, Zakopane, Poland. - S. Solovjovs,
*Hypergraph Functor and Attachment*, 80th Workshop on General Algebra/Workshop on Non-Classical Algebraic Structures, June 1 - 6, 2010, Bedlewo, Poland. - S. Solovjovs,
*Categorically-Algebraic Topology*, International Conference on Algebras and Lattices, June 21 - 25, 2010, Prague, Czech Republic. - S. Solovjovs,
*Categorically-Algebraic Dualities in Progress*, Summer School on General Algebra and Ordered Sets 2010, September 4 - 10, 2010, Malenovice, Czech Republic.

- S. Solovjovs,
*Variable-Basis Categorically-Algebraic Dualities*, 32nd Linz Seminar on Fuzzy Set Theory, February 1 - 5, 2011, Linz, Austria. - S. Solovjovs,
*Dual Attachment Pairs in Categorically-Algebraic Topology*, 81st Workshop on General Algebra, February 3 - 6, 2011, Salzburg, Austria. - S. Solovjovs,
*Functorial Semantics of Topological Theories*, Applications of Algebra XV, March 7 - 13, 2011, Zakopane, Poland. - S. Solovjovs,
*Algebraically-Topological Systems*, The Second International Conference on Order, Algebra, and Logics, June 6 - 10, 2011, Krakow, Poland. - S. Solovjovs,
*Algebraically-Topological Systems and Attachment*, International Conference on Semigroups, General Algebra, and Applications/82nd Workshop on General Algebra/26th Conference for Young Algebraists, June 24 - 26, 2011, Potsdam, Germany. - S. Solovjovs,
*Topological Categories versus Categorically-Algebraic Topology*, Topology, Algebra, and Categories in Logic (TACL 2011), July 26 - 30, 2011, Marseilles, France. - S. Solovjovs,
*Quantale Algebras as a Generalization of Lattice-Valued Frames*, Summer School on General Algebra and Ordered Sets 2011, September 3 - 9, 2011, Svratka, Czech Republic.

- S. Solovjovs,
*Many for the Price of One Duality Principle for Variety-Based Topological Spaces*, Workshop on Category Theory in honour of George Janelidze, on the occasion of his 60th birthday, July 9 - 13, 2012, Coimbra, Portugal. - S. Solovjovs,
*On a General Fuzzification Procedure for Topological Categories*, Conference on Point-Set and Lattice-Valued Topology, October 18 - 19, 2012, Kent, Ohio, USA. - S. Solovjovs,
*Tower Extension of Topological Categories*, 1084th AMS Meeting: Special Session on A Survey of Lattice-Valued Mathematics and its Applications, October 20 - 21, 2012, Akron, Ohio, USA.

- S. Solovjovs,
*On Monoidal Characterization of Closed Maps*, 85th Workshop on General Algebra, January 31 - February 2, 2013, Luxembourg. - J. T. Denniston, A. Melton, S. E. Rodabaugh, S. Solovjovs,
*Lattice-Valued Preordered Sets as Lattice-Valued Topological Systems*, 34th Linz Seminar on Fuzzy Set Theory, February 26 - March 2, 2013, Linz, Austria. - S. Solovjovs,
*Relational Topological Spaces and Topological Systems*, Applications of Algebra XVII, March 4 - 10, 2013, Zakopane, Poland. - S. Solovjovs,
*On Monoidal Nuclei*, 86th Workshop on General Algebra, May 30 - June 2, 2013, Olomouc, Czech Republic. - S. Solovjovs,
*On Morphisms of Lattice-Valued Formal Contexts*, The 4th Novi Sad Algebraic Conference, June 5 - 9, 2013, Novi Sad, Serbia. - S. Solovjovs,
*Localification Procedure for Affine Systems*, International Category Theory Conference 2013, July 7 - 13, 2013, Sydney, Australia. - S. Solovjovs,
*Topological Systems versus Attachment Relations*, General Algebra and its Applications: GAIA 2013, July 15 - 19, 2013, Melbourne, Australia. - S. Solovjovs,
*On Fuzzification of Topological Categories*, Topology, Algebra, and Categories in Logic 2013, July 28 - August 1, 2013, Nashville, Tennessee, USA. - S. Solovjovs,
*Sobriety-Spatiality Equivalence for Affine Sets and Systems*, 51st Summer School on General Algebra and Ordered Sets, September 1 - 7, 2013, Trojanovice, Czech Republic.

- S. Solovjovs, M. Stehlik,
*On the Category of Lattice-Valued Bornological Spaces*, 12th International Conference on Fuzzy Set Theory and Applications (FSTA 2014), January 26 - 31, 2014, Liptovsky Jan, Slovak Republic. - S. Solovjovs,
*On a Characterization of the Categories of Preordered Sets and Quasi-Pseudo-Metric Spaces*, 87th Workshop on General Algebra/28th Conference of Young Algebraists, February 7 - 9, 2014, Linz, Austria. - S. Solovjovs, M. Stehlik,
*Lattice-Valued Bornological Systems or Probabilistic Modelling of Cancer Research?*, 35th Linz Seminar on Fuzzy Set Theory, February 18 - 22, 2014, Linz, Austria. - S. Solovjovs, M. Stehlik,
*On the Category of Lattice-Valued Bornological Vector Spaces*, Applications of Algebra XVIII, March 10 - 16, 2014, Zakopane, Poland. - J. Paseka, S. Solovjovs, M. Stehlik,
*Lattice-Valued Bornological Vector Spaces and Systems*, 88th Workshop on General Algebra, June 19 - 22, 2014, Warsaw, Poland. - S. Solovjovs,
*On Monoidal (Co)nuclei in Monoidal Topology*, 12th Biennial IQSA Meeting: Quantum Structures Olomouc 2014, June 23 - 27, 2014, Olomouc, Czech Republic.

- J. Paseka, S. Solovjovs,
*Categorical Foundations of Variety-Based Bornology*, 89th Workshop on General Algebra, February 26 - March 1, 2015, Dresden, Germany. - S. Solovjovs,
*On the Category of Affine Systems*, 90th Workshop on General Algebra, June 5 - 7, 2015, Novi Sad, Serbia. - S. Solovjovs,
*On Monoidal (Co)nuclei and their Applications*, Category Theory 2015, June 14 - 19, 2015, Aveiro, Portugal. - J. T. Denniston, A. Melton, S. E. Rodabaugh, S. Solovjovs,
*Using Topological Systems to Create a Framework for Institutions*, Topology, Algebra, and Categories in Logic 2015, June 21 - 26, 2015, Ischia, Italy.

- J. T. Denniston, A. Melton, S. E. Rodabaugh, S. Solovjovs,
*Relational Approach to Topological Spaces and Topological Systems*, 13th International Conference on Fuzzy Set Theory and Applications (FSTA 2016), January 24 - 29, 2016, Liptovsky Jan, Slovak Republic. - J. T. Denniston, A. Melton, S. E. Rodabaugh, S. Solovjovs,
*Sierpinski Object for Affine Systems*, 36th Linz Seminar on Fuzzy Set Theory, February 2 - 6, 2016, Linz, Austria. - S. Solovjovs,
*On Representation of Lattice-Valued Frames as Quantale Algebras*, 92nd Workshop on General Algebra, May 27 - 29, 2016, Prague, Czech Republic.

- S. Solovjovs,
*On Some Properties of Comma Categories*, Workshop "Algebra and its Applications", May 5 - 7, 2006, Koko, Estonia.

- S. Solovjovs,
*Quantifiers on Quantale Algebras*, Workshop "Algebra and its Applications", May 4 - 6, 2007, Ratnieki, Latvia.

- S. Solovjovs,
*From Quantale Algebroids to Topological Spaces: Fixed- and Variable-Basis Approaches*, Workshop on Algebra, March 27, 2008, Masaryk University, Brno, Czech Republic. - S. Solovjovs,
*Variable-Basis Topological Systems versus Variable-Basis Topological Spaces*, Workshop "Algebra and its Applications", May 2 - 4, 2008, Viinistu, Estonia. - S. Solovjovs,
*On Ordered Categories as a Framework for Fuzzification of Algebraic and Topological Structures*, 1st Czech-Latvian Seminar on Advanced Methods in Soft Computing, November 19 - 22, 2008, Trojanovice, Czech Republic. - S. Solovjovs,
*A Note on Nuclei of Quantale Algebroids*, Workshop on Algebra, October 30, 2008, Masaryk University, Brno, Czech Republic.

- S. Solovjovs,
*On Homomorphisms of Extended-Order Algebras*, Workshop on Lattices, Relations and Kleene Algebras, September 21 - 23, 2010, University College London, London, UK. - S. Solovjovs,
*Categorically-Algebraic Topology: Theory and Applications*, Research Seminar on Category Theory, October 15, 2010, Faculty of Mathematics, Informatics, and Mechanics, University of Warsaw, Warsaw, Poland. - S. Solovjovs,
*Lattice-Valued Categorically-Algebraic Topology*(poster presentation), 91st Peripatetic Seminar on Sheaves and Logic (PSSL 91), November 27 - 28, 2010, University of Amsterdam Library, Amsterdam, The Netherlands.

- S. Solovjovs,
*Categorically-Algebraic Topological Theories*, 92nd Peripatetic Seminar on Sheaves and Logic (PSSL 92), April 23 - 24, 2011, University of Oxford, Oxford, UK. - S. Solovjovs,
*On Some Properties of the Category of Extended-Order Algebras*, Workshop "Algebra and its Applications", April 29 - May 1, 2011, Svente, Latvia.

- S. Solovjovs,
*Lattice-Valued Preordered Sets as Lattice-Valued Topological Spaces*, Workshop on Algebraic Methods in Quantum Logic, January 17 - 20, 2013, Ostravice, Czech Republic.

- S. Solovjovs,
*On a Characterization of a Category for Monoidal Topology*, Workshop on Algebraic Methods in Quantum Logic, January 13 - 19, 2014, Mala Moravka, Czech Republic. - S. Solovjovs,
*Introduction to Monoidal Topology*, Spring Workshop on Algebra and Discrete Mathematics, April 2 - 5, 2014, Svratka, Czech Republic. - S. Solovjovs,
*On a Lax-Algebraic Characterization of Closed Maps*, 95th Peripatetic Seminar on Sheaves and Logic (PSSL 95), April 26 - 27, 2014, Brno, Czech Republic.

- S. Solovjovs and A. Sostaks,
*On Some Topological Properties Modulo an Ideal*, 3rd Latvian Mathematical Conference, April 14 - 15, 2000, Jelgava, Latvia.

- S. Solovjovs,
*On some Properties of Subfunctors and Quotient Functors*, 4th Latvian Mathematical Conference, April 26 - 27, 2002, Ventspils, Latvia.

- S. Solovjovs,
*Algebraic Properties of Comma Categories*, 6th Latvian Mathematical Conference, April 7 - 8, 2006, Liepaja, Latvia.

- S. Solovjovs,
*Variable-Basis Sobriety and Spatiality*, 7th Latvian Mathematical Conference, April 18 - 19, 2008, Rezekne, Latvia.