Tomaž Pisanski | |
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| Born | (1949-05-24)24 May 1949 (age 75) |
| Nationality | Slovene |
| Alma mater | University of Ljubljana,Pennsylvania State University |
| Scientific career | |
| Fields | Topological graph theory,Algebraic graph theory,Discrete mathematics,Configuration (geometry). |
| Institutions | University of Primorska |
| Doctoral advisor | Torrence Parsons |
| Doctoral students | Vladimir Batagelj Sandi Klavžar Bojan Mohar |
Tomaž (Tomo) Pisanski (born 24 May 1949 inLjubljana,Yugoslavia, which is now inSlovenia) is aSlovenianmathematician working mainly indiscrete mathematics andgraph theory. He is considered by many Slovenian mathematicians to be the "father of Slovenian discrete mathematics."[1]
As a high school student, Pisanski competed in the 1966 and 1967International Mathematical Olympiads as a member of theYugoslav team, winning a bronze medal in 1967.[2] He studied at theUniversity of Ljubljana where he obtained a B.Sc, M.Sc and PhD in mathematics. His 1981 PhD thesis intopological graph theory was written under the guidance ofTorrence Parsons. He also obtained an M.Sc. incomputer science fromPennsylvania State University in 1979.[3]
Currently, Pisanski is a professor ofdiscrete andcomputational mathematics and Head of the Department of Information Sciences and Technology atUniversity of Primorska inKoper.[4] In addition, he is a professor at theUniversity of Ljubljana Faculty of Mathematics and Physics (FMF). He has been a member of theInstitute of Mathematics, Physics and Mechanics (IMFM) in Ljubljana since 1980, and the leader of several IMFM research projects.[5] In 1991 he established the Department of Theoretical Computer Science at IMFM, of which he has served as both head and deputy head.
He has taught undergraduate and graduate courses in mathematics and computer science at theUniversity of Ljubljana,University of Zagreb,University of Udine,University of Leoben,California State University, Chico,Simon Fraser University,University of Auckland andColgate University.[6] Pisanski has been an adviser for M.Sc and PhD students in both mathematics and computer science. Notable students includeJohn Shawe-Taylor (B.Sc in Ljubljana),Vladimir Batagelj,Bojan Mohar,Sandi Klavžar, andSandra Sattolo (M.Sc in Udine).
Pisanski’s research interests span several areas of discrete and computational mathematics, including combinatorial configurations,abstract polytopes, maps on surfaces,chemical graph theory, and the history of mathematics and science. In 1980 he calculated thegenus of theCartesian product of any pair of connected, bipartite,d-valent graphs using a method that was later called theWhite–Pisanski method.[7] In 1982Vladimir Batagelj and Pisanski proved that theCartesian product of atree and acycle isHamiltonian if and only if no degree of the tree exceeds the length of the cycle. They also proposed a conjecture concerningcyclic Hamiltonicity of graphs. Their conjecture was proved in 2005.[8] WithBrigitte Servatius he is the co-author of the bookConfigurations from a Graphical Viewpoint (2013).[9]
From 1998-1999, Pisanski was chairman of theSociety of Mathematicians, Physicists and Astronomers of Slovenia (DMFA Slovenije); he was appointed an honorary member in 2015.[10] He is a founding member of theInternational Academy of Mathematical Chemistry, serving as its vice president from 2007 to 2011.[11] In 2008, together withDragan Marušič, he foundedArs Mathematica Contemporanea, the first international mathematical journal to be published in Slovenia.[12] In 2012 he was elected to theAcademia Europaea.[13] He was the president of the Slovenian Discrete and Applied Mathematics Society (SDAMS) from its conception until December 12, 2024. SDAMS is the first Eastern European mathematical society not wholly devoted to theoretical mathematics to be accepted as a full member of theEuropean Mathematical Society (EMS).[14]
In 2005, Pisanski wasdecorated with theOrder of Merit (Slovenia),[15] and in 2015 he received the Zois award for exceptional contributions to discrete mathematics and its applications.[16] In 2016, he received theDonald Michie andAlan Turing Prize for lifetime achievements inInformation Science in Slovenia.[17]
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