Jan Karabas's web page

Institute of Mathematics, Matej Bel University

Hmmm, about me....

Just for fun

Personal data

Full name: Ján Karabáš (in TeX J\'an Karab\'a\v{s})
Position (50%): assistant professor
Address: Department of Computer Science
Faculty of Natural Sciences
Matej Bel University
Tajovského 40
97401 Banská Bystrica
Slovakia
Position (50%): researcher
Address: Institute of Mathematics and Computer Science
Matej Bel University
Ďumbierska 1
Banská Bystrica
SK-97411
Slovakia
 

Qualification and degrees:

Assistant professor (docent): University of Primorska, Koper, Slovenia in 2014 (valid until end of 2019)
Philosophiae Doctor: Mathematical Institute of Slovak Academy of Sciences, Bratislava in the field "Algebra and Number Theory" in 2005 with thesis 3-Manifolds with Heegaard Genus at most Two,
Master of Sciences: Matej Bel University, Banská Bystrica with specialization "Teacher of Informatics" in 2000.

Professional history

Jul 2015 - Sep 2015 assistant professor, Department of Computer Science, FPV UMB, Banská Bystrica
Jan 2015 - Jun 2015 visiting professor (at the position of assistant professor), University of Primorska, Koper
2005 - Sep 2015 research worker, SRI of Matej Bel University in Banská Bystrica
2004 - 2005 assistant, Department of Mathematics, Faculty of Natural Sciences of Matej Bel University in Banská Bystrica
2001 - 2004 PhD student, Mathematical Institute of Slovak Academy of Sciences in Banská Bystrica
1996 - 2003    research worker, Public Observatory in Banská Bystrica

Research (more)

I am active in the fields of group actions on graphs and surfaces, maps, computational group theory and low-dimensional topology. In every field, I try to find, study and implement as effective algorithms as possible to solve (or partially solve) the problems. I use C, C++, GAP and Python as languages of implementation of algorithms

Teaching (more in slovak)

Since 2001 I led the folowing seminars (and/or) lectures on Department of Mathematics on Faculty of Natural Sciences, Matej Bel University:
  • basic usage of computers,
  • elementary statistics,
  • linear programming,
  • discrete mathematics and graph theory,
  • algebraic structures.
...and some others.

List of Publications

  1. Breda d'Azevedo, A., Catalano, D. A., Karabáš, J., and Nedela, R., Maps of Archimedean Class and operations on dessins, Discrete Mathematics 338, Issue 10, (2015), 1814–1825, Proceedins of Seventh Czech-Slovak International Symposium on Graph Theory, Combinatorics, Algorithms and Applications, Košice 2013.
  2. Karabáš, J., Máčajová, E., and Nedela, R., 6-decomposition of snarks, European Journal of Combinatorics 34 (2013), 111 - 122
  3. Breda d'Azevedo, A., Catalano, D. A., and Karabáš, J., Two infinite families of Archimedean maps of higher genera (accepted in Ars Combinatoria).
  4. Karabáš, J., and Nedela, R., Archimedean maps of higher genera, Math. Comp. 81 (2012), 569-583.
  5. Karabáš, J., and Nedela, R., Archimedean solids of genus two, Electronic Notes in Discrete Mathematics 28 (2007), 331-339.
  6. Karabáš, J., Maličký, P., and Nedela, R., Three-manifolds with Heegaard genus at most two represented by crystallisations with at most 42 vertices , Discrete Mathematics 307 (2007), 2569 - 2590.
  7. Karabáš, J., 3-manifolds with Heegaard genus at most two, PhD Thesis, Mathematical Institute of SAS, Bratislava, 2005.
  8. Karabáš, J., Maličký, P., and Nedela, R., Fundamental groups of prime 3-manifolds of genus at most two , Tatra Mountains Math. Publ. 36 (2007), 1-11, Proceedings of conference "Graphs 2004".
  9. Karabáš, J., and Nedela, R., Minimal Representatives of G-classes of 3-Manifolds of Genus Two, Acta Univ. M. Belii. Ser. Mathematics 10 (2003), 21-42.

Conferences, seminars, lectures

2014 SIGMAP 2014, Great Malvern, United Kingdom, with talk Discrete group actions and edge-transitive maps on a given surface.
2013 Geometry Days in Novosibirsk, with talk Discrete group actions on orientable surfaces,
ATCAGC 2013, Bovec, Slovenia with talk Discrete group actions on orientable surfaces.
2012 Workshop on low dimensional conformal structures and their groups, Gdańsk, Poland with talk Group actions on orientable surfaces,
Czech-Slovak Graph Theory Conference 2012, Litomyšl, Czech republic with talk Archimedean operations and vertex-transitive maps,
Symmetries of Discrete Objects, Queenstown, New Zealand with talk Discrete group actions on orientable surfaces
2011 Workshop on Symmetry in Graphs, Maps and Polytopes, Fields Institute, Toronto, Canada with talk Classification of edge-transitive maps,
Workshop on Group Actions on Combinatorial Structures, Beijing, Public Republic of China with talk Discrete groups of automorphisms of orientable surfaces,
Bled'11 - 7th Slovenian International Conference on Graph Theory, Bled, Slovenia with talk Classification of edge-transitive maps,
Czech-Slovak Graph Theory Conference 2011,Šachticky, Slovakia with talk Classification of edge-transitive maps, (also as the member of the organising comitee),
2010 SIGMAP 2010, Oaxaca, Mexico with talk Archimedean maps of higher genera,
Czech-Slovak Graph Theory Conference 2010, Lednice, Czech republic with talk Archimedean maps of higher genera,
Joint Mathematical Conference CSASC 2010, Prague, Czech Republic with talk Archimedean maps of higher genera (revisited).
2009 GEMS 2009, Graph Embeddings and Maps of Surfaces, Tále, Slovakia; as member of organisers committee.
2008 Workshop on Discrete Mathematics, Vienna, Austria with talk Classification and enumeration of discrete group actions on Riemann surfaces of small genera,
Research fellow on Department of Mathematics, University of Aveiro, Aveiro, Portugal.
2007 Czech-Slovak Graph Theory Conference 2007, Hradec nad Moravicí, Czech republic with talk Archimedean solids,
6th Slovenian International Conference on Graph Theory, Bled, Slovenia with talk Archimedean solids of higher genera,
Slovak-Austrian Mathematical Congress, Podbanské, Slovakia with talk On finite group actions on Riemann surfaces up to genus ten.
2006 Sixth Czech-Slovak International Symposium on Combinatorics, Graph Theory, Algorithms and Applications, Prague, Czech republic with talk Archimedean solids of genus two,
SIGMAC 2006, Aveiro, Portugal with talk Archimedean solids of genus two.
2005 40th Czech and Slovak Conference GRAPHS 2005, Budmerice, Slovakia with talk H-hamiltonicity of 3-valent polyhedral graphs,
GEMS 2005, Stará Lesná, Slovakia with talk Pure combinatorial classification of 3-manifolds with genera zero and one,
Midsummer Combinatorial Workshop, Prague, Czech republic with talk Combinatorial methods in low-dimensional topology.
2004 Czech-Slovak Conference GRAPHS 2004, Vyšné Ružbachy, Slovakia with talk Fundamental groups of prime 3-manifolds up to genus 2 and its isomorphisms,
Classification of 3-manifolds of genus $\leq 2$, invited lecture at Bologna University,
Classification of 3-manifolds of genus $\leq 2$, invited lecture in Seminar at Dept. of Mathematics, Modena University.
2002 Graphs 2002, Rejvíz, Czech republic with talk G-classes of admissible 6-tuples representing 3-manifolds up to genus 2

My webpage is always a work in progress.