Tomaž Pisanski
| Tomaž Pisanski | |
|---|---|
| Born |
May 24, 1949 Ljubljana, Slovenia |
| Nationality | Slovene |
| Fields | Topological graph theory, Algebraic graph theory, Discrete mathematics, Configuration (geometry). |
| Institutions | University of Primorska, University of Ljubljana |
| Alma mater | University of Ljubljana, Pennsylvania State University |
| Doctoral advisor | Torrence Parsons |
Tomaž (Tomo) Pisanski (born May 24, 1949 in Ljubljana, Slovenia) is a Slovenian mathematician working mainly in discrete mathematics and graph theory. In 1980 he calculated the genus of the Cartesian product of any pair of connected, bipartite, d-valent graphs using a method that was later called the White–Pisanski method. In 1982 Vladimir Batagelj and Pisanski proved that the Cartesian product of a tree and a cycle is Hamiltonian if and only if no degree of the tree exceeds the length of the cycle. They also proposed a conjecture concerning cyclic Hamiltonicity of graphs. Their conjecture was proved in 2005.
Pisanski studied at the University of Ljubljana where he obtained a B.Sc., M.Sc and Ph.D. in mathematics. He competed in the 1966 and 1967 International Mathematical Olympiads, winning a bronze medal in 1967. His Ph.D. thesis from topological graph theory was written under the guidance of Torrence Parsons. During his undergraduate studies he was an exchange student at the University of Nancy, France. He also obtained a M.Sc. in computer science from the Pennsylvania State University.
Currently, Pisanski is a professor of discrete and computational mathematics at the University of Ljubljana. Since 2004 he has held a joint position at University of Primorska in Koper. He has taught undergraduate and graduate courses in mathematics and computer science at the University of Zagreb, University of Udine, University of Leoben, California State University, Chico, Simon Fraser University, University of Auckland and Colgate University. His students include John Shawe-Taylor (BSc in Ljubljana), Vladimir Batagelj, Bojan Mohar, Sandi Klavžar, Sandra Sattolo (MSc in Udine).
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