NIK RUSKUC: RECENT CONFERENCE AND SEMINAR TALKS

  1. ``Generating Direct Powers'', University of Florida, Gainesville, Florida, 21 November 2011.
  2. ``1+1=2: applications to direct products of semigroups'', Lisbon, 16 December 2010. Slides.
  3. ``Grid Pattern Classes'', DIMAP Seminar, Warwick, 16 November 2010. Slides.
  4. ``Grid Pattern Classes'', Permutation Patterns 2010, Dartmouth College, 11 August 2010. Original slides.
  5. ``Substitution decompositions and pattern classes of permutations'', NORCOM2010, Reykjavik, 26 May 2010. Original slides.
  6. ``Growth of Generating Sets of Direct Powers'', Lisbon, 26 March 2010.
  7. ``Growth of Generating Sets of Direct Powers'', Glasgow, 30 September 2009. Original slides, Printable version.
  8. ``Rewriting Generators for (Sub)Semigroups'', International Conference on Semigroups and Related Topics, Porto, Portugal, July 2009. Original slides, Printable version.
  9. ``Growth of Generating Sets of Direct Powers'', ICGS2009, Lincoln, Nebraska, May 2009. Original slides, Printable version.
  10. ``One Relation Semigroups'', NBSAN, York, January 2009. Original slides, Printable version.
  11. ``Residual Finiteness of Monoids, Associated Actions and Groups'', Newcastle, November 2008. Original slides, Printable version.
  12. ``Some Combinatorial Properties of Direct Products of Groups, Semigroups and Other Algebraic Structures'', York, November 2008. Original slides, Printable version.
  13. ``Residual Finiteness of Monoids, Associated Actions and Groups'', SAGE, University of Essex, August 2008. Original slides, Printable version.
  14. ``Some Combinatorial Properties of Direct Products of Groups, Semigroups and Other Algebraic Structures'', Groups Galway 2008, Galway, May 2008. Original slides, Printable version.
  15. ``Monoids and Their Cayley Graphs'', Northern British Geometric Group Theory Network, Leeds, April 2008. Original slides, Printable version.
  16. ``Diagonal Acts and Applications'', BMC, York, March 2008. Original slides, Printable version.
  17. ``Some interesting properties of direct products of groups, semigroups and other algebraic structures'', Maximals, Edinburgh, February 2008. Original slides, Printable version.
  18. ``Endomorphism Monoids of Combinatorial Structures'', 32nd Australasian Conference on Combinatorial Mathematics & Combinatorial Computing, Dunedin, New Zealand, December 2007. Original slides, Printable version.
  19. ``Endomorphism Monoids of Graphs and Partial Orders'', Combinatorics of Arc-Transitive Graphs and Partial Orders, Leeds, August 2007. Slides.
  20. ``Presentations for Bruck--Reilly Extensions and Groups of Units'', Semigroups, Categories and Automata (Fountainfest), York, October 2006. Slides.
  21. ``Presentations of (Sub)semigroups'', Pure Mathematics Colloquium, Leeds, March 2006. Slides: PS, PDF.
  22. ``Presentations of (Sub)semigroups'', Ekaterinburg, Russia, August/September 2005. Slides: PS, PDF.
  23. ``Decidability Questions for Pattern Avoidance Classes of Permutations'', Gainesville, Florida, March 2005. Slides: PS, PDF.
  24. ``Decidability Questions for Pattern Avoidance Classes of Permutations'', Newcastle, NSW, February 2005. Slides: PS, PDF.
  25. ``Decidability Questions for Pattern Avoidance Classes of Permutations'', Cambridge, October 2004. Slides: PS, PDF.
  26. ``Generators and Defining Relations for Direct Products of Semigroups'', NSAC2003, Novi Sad, Serbia, August 2003. Slides: PS, PDF.
  27. ``Pattern Avoidance in Permutations'', Cambridge University, May 2003. Slides: PS, PDF.
  28. ``Generators and Presentations for Wreath Products and Diagonal Acts of Semigroups'', University of Edinburgh and Heriot Watt Algebra Seminar, Edinburgh, April 2003. Slides: PS, PDF.
  29. ``Generators and Defining Relations for Unions of Semigroups'', International Workshop on Semigroups and Languages, Lisbon, Portugal, November 2002. Slides: PS, PDF.
  30. ``Relative ranks in infinite transformation semigroups'', Glasgow, Scotland, October 2002. Slides: PS, PDF.
  31. ``Subsemigroups of the Bicyclic Monoid'', Joint AMS--UMI Meeting, Pisa, Italy, June 2002. Slides: PS, PDF; Figure 1: PS, PDF; Figure 2: PS, PDF.
  32. ``On the Berman Conjectore on p_n-sequences of Finite Semigroups'', International Workshop on Semigroups, Automata, and Formal Languages, Crema, Italy, June, 2002 Slides: PS, PDF.
  33. ``Combinatorial Properties of Wreath Products and Diagonal Acts'', Thematic Term on Semigroups, Algorithms, Automata and Languages, Coimbra, Portugal, July 2001. Slides: DVI, PS.
  34. ``On minimal presentations for groups, semigroups and monoids'', Leicester, England, February 2001. Slides: DVI, PS.
  35. ``Todd-Coxeter type methods for finitely presented inverse semigroups'', International Conference on Geometrical and Combinatorial Methods in Group Theory and Semigroup Theory, Lincoln, Nebraska, U.S.A., May 2000. Slides: DVI, PS.
  36. ``Some (easy?) questions concerning semigroup presentations'', Third International Colloquium on Words, Languages and Combinatorics, Kyoto, Japan, March 2000. Slides: DVI, PS.
  37. ``Automatic semigroups'', Workshop on Algebraic Systems, Formal Languages and Computations, Kyoto, Japan, March 2000. Slides: DVI, PS.
  38. ``Computational tools in semigroup theory and their application to semigroup presentations'' (a series of 10 lectures), Lisbon, Portugal, May 1999.
  39. ``Semigroup presentations'', Newcastle, England, March 1999. Slides: DVI, PS.
  40. ``Combinatorial semigroup theory: results and problems'', University of London Algebra Seminar, Imperial College, London, England, February 1999. Slides: DVI, PS.
  41. ``Presentations for semigroups and groups related to them'', Glasgow, Scotland, October 1998. Slides: DVI, PS.
  42. ``Presentations for semigroups and groups related to them'', Bath, England, October 1998. Slides: DVI, PS.
  43. ``Finite presentability of direct products of semigroups'', CGAMA, Edinburgh, Scotland, July 1998. Slides: DVI, PS.
  44. ``Schutzenberger groups'', International Conference on Algorithmic Problems in Groups and Semigroups, Lincoln, Nebrasca, U.S.A., May 1998. Slides: DVI, PS.
  45. ``Index for subsemigroups: combinatorial and computational issues'', Leicester, England, March 1998. Slides: DVI, PS.
  46. ``On index and combinatorial finiteness conditions for semigroups'', QMW, London, England, February 1998. Slides: DVI, PS.
  47. ``On index and combinatorial finiteness conditions for semigroups'', Edinburgh, Scotland, January 1998. Slides: DVI, PS.
  48. ``Generators and relations for direct products of semigroups'', York, England, December 1997. Slides: DVI, PS.
  49. (with G. Pfeiffer) ``Computational semigroup theory and GAP'', a series of 12 lectures and practical sessions, Lisbon, Portugal, November 1997. Slides 1: DVI, PS. Slides 2: DVI, PS. Practicals: DVI, PS
  50. ``Groups, semigroups and presentations'', Groups St Andrews 1997 in Bath, Bath, England, U.K., August 1997. Slides: DVI, PS.
  51. ``When is the direct product of two semigroups finitely presented?", University of St Andrews, St Andrews, Scotland, U.K., December 1996.
  52. ``Computing in transformation semigroups'', GAP Workshop, Aachen, Germany, September 1996.
  53. ''Searching for index", Semigroups and Their Applications, Prague, Czech Republic, July 1996. Slides: DVI, PS.
  54. ``Presentations for simple semigroups'', workshop on Theory of Semigroups, Lisbon, Portugal, May 1996. Slides: DVI, PS.
  55. ``Subsemigroups of finitely presented semigroups'', University of Szeged, Szeged, Hungary 1996;
  56. ``Subsemigroups of free semigroups'', University of Miskolc, Miskolc, Hungary, March 1996;
  57. ``Are semigroups semi-groups? (Combinatorial examples)'', Mathematical Institute of the Hungarian Academy of Science, Budapest, Hungary, March 1996;
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