Category: Seminars

  • Finite CI-groups and Schur rings

    Finite CI-groups and Schur rings

    2014-10-27 10:00-10:45 FAMNIT-SEMIN Istvan Kovacs (UP FAMNIT) Finite CI-groups and Schur rings A Cayley graph Cay(G,S) is called a CI-graph if for every subset Tof G, if Cay(G,T) and Cay(G,S) […]

  • Generalized Cayley graphs

    Generalized Cayley graphs

    2014-10-20 10:00-10:45 FAMNIT-SEMIN Ademir Hujdurović Generalized Cayley graphs Generalized Cayley graphs were defined by D.Marušič, R. Scapellato and N. Zagaglia Salvi in 1992. They studied properties of such graphs, mostly […]

  • A two dimensional matrix problem of Molnar and Timmermann and its connection to a geometric problem problem of Rassias and Wagner

    A two dimensional matrix problem of Molnar and Timmermann and its connection to a geometric problem problem of Rassias and Wagner

    2014-10-13 10:00-10:45 FAMNIT-SEMIN György Pál Gehér (University of Szeged and University of Debrecen, Hungary) A two dimensional matrix problem of Molnar and Timmermann and its connection to a geometric problem […]

  • Minimum weight clique cover in claw-free perfect graphs

    Minimum weight clique cover in claw-free perfect graphs

    2014-10-06 10:00-11:00 FAMNIT-SEMIN Dr. Flavia Bonomo (Buenos Aires University, Argentina) Minimum weight clique cover in claw-free perfect graphs For a perfect graph G, and given a weight function w on […]

  • On chordal and dually chordal graphs and their tree representations

    On chordal and dually chordal graphs and their tree representations

    2014-10-06 11:00-12:00 FAMNIT-SEMIN Dr. Pablo De Caria (National University of La Plata, Argentina) On chordal and dually chordal graphs and their tree representations  Chordal and dually chordal graphs are well […]

  • Finding (Shortest) Paths between Graph Colourings

    Finding (Shortest) Paths between Graph Colourings

    2014-09-29 10:00-11:00 FAMNIT-SEMIN Dr Matthew Johnson (Durham University, UK) Finding (Shortest) Paths between Graph Colourings  The reconfiguration graph of the $k$-colourings of a graph $G$ contains as its vertex set […]

  • Kaj imata skupnega kombinatorična optimizacija in realna algebraična geometrija

    Kaj imata skupnega kombinatorična optimizacija in realna algebraična geometrija

    2014-06-16 10:00-12:00 FAMNIT-MP Janez Povh (Fakulteta za informacijske študije v Novem mestu) Kaj imata skupnega kombinatorična optimizacija in realna algebraična geometrija V kombinatorični optimizaciji se ukvarjamo z iskanjem optimuma linearne […]

  • Noncontractibility of the coset lattice and fixed points of group actions

    Noncontractibility of the coset lattice and fixed points of group actions

    2014-06-02 10:00-11:00 FAMNIT-SEMIN Dr. Russ Woodroofe ( Mississippi State University, USA) Noncontractibility of the coset lattice and fixed points of group actions Ken Brown asked whether there is any group […]

  • Verifiable information: the problem of communication

    Verifiable information: the problem of communication

    2014-06-09 10:00-11:00 FAMNIT-SEMIN Slobodan Danko Bosanac (Ruđer Bošković Institute, Croatia) Verifiable information: the problem of communication Exchange of information occurs on all levels of living matter, and it is the basis […]

  • A CENTURY OF GRAPH THEORY

    A CENTURY OF GRAPH THEORY

    2014-06-11 11:00-12:00 FAMNIT-VP prof. dr. Robin Wilson (Open University, United Kingdom) A CENTURY OF GRAPH THEORY Graph theory has changed completely from the late-19th century to the late 20th century, […]