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- Zdeněk_Dvořák abstract "Zdeněk Dvořák (born 1981) is a Czech mathematician specializing in graph theory.Dvořák was born April 26, 1981, in Nové Město na Moravě.He competed on the Czech national team in the 1999 International Mathematical Olympiad, and in the same year in the International Olympiad in Informatics, where he won a gold medal. He earned his Ph.D. in 2007 from Charles University in Prague, under the supervision of Jaroslav Nešetřil. He remained as a research fellow at Charles University until 2010, and then did postdoctoral studies at the Georgia Institute of Technology and Simon Fraser University. He then returned to the Computer Science Institute (IUUK) of Charles University, obtained his habilitation in 2012, and is now an associate professor there.He was one of three winners of the 2015 European Prize in Combinatorics, "for his fundamental contributions to graph theory, in particular for his work on structural aspects of graph theory, including solutions to Havel’s 1969 problem and the Heckman–Thomas 14/5 problem on fractional colourings of cubic triangle-free graphs. A proof of the conjecture of Havel was announced by Dvořák and his co-authors in 2009; it is a strengthening of Grötzsch's theorem, and states that there exists a constant d such that, if a planar graph has no two triangles within distance d of each other, then it can be colored with three colors. The claim that triangle-free graphs of maximum degree three have fractional chromatic number at most 14/5 was conjectured by C. C. Heckman and Robin Thomas in 2001, announced by Dvořák and his co-authors in 2013 and published by them in 2014.".
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- Zdeněk_Dvořák wikiPageWikiLink Category:1981_births.
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- Zdeněk_Dvořák wikiPageWikiLink Category:Charles_University_in_Prague_faculty.
- Zdeněk_Dvořák wikiPageWikiLink Category:Czech_mathematicians.
- Zdeněk_Dvořák wikiPageWikiLink Category:Graph_theorists.
- Zdeněk_Dvořák wikiPageWikiLink Category:Living_people.
- Zdeněk_Dvořák wikiPageWikiLink Charles_University_in_Prague.
- Zdeněk_Dvořák wikiPageWikiLink European_Prize_in_Combinatorics.
- Zdeněk_Dvořák wikiPageWikiLink Fractional_coloring.
- Zdeněk_Dvořák wikiPageWikiLink Georgia_Institute_of_Technology.
- Zdeněk_Dvořák wikiPageWikiLink Graph_coloring.
- Zdeněk_Dvořák wikiPageWikiLink Graph_theory.
- Zdeněk_Dvořák wikiPageWikiLink Grxc3xb6tzschs_theorem.
- Zdeněk_Dvořák wikiPageWikiLink Habilitation.
- Zdeněk_Dvořák wikiPageWikiLink International_Mathematical_Olympiad.
- Zdeněk_Dvořák wikiPageWikiLink International_Olympiad_in_Informatics.
- Zdeněk_Dvořák wikiPageWikiLink Jaroslav_Nešetřil.
- Zdeněk_Dvořák wikiPageWikiLink Nové_Město_na_Moravě.
- Zdeněk_Dvořák wikiPageWikiLink Planar_graph.
- Zdeněk_Dvořák wikiPageWikiLink Simon_Fraser_University.
- Zdeněk_Dvořák wikiPageWikiLink Triangle-free_graph.
- Zdeněk_Dvořák wikiPageWikiLinkText "Dvořák".
- Zdeněk_Dvořák wikiPageWikiLinkText "Dvořák, Zdeněk".
- Zdeněk_Dvořák wikiPageWikiLinkText "Zdeněk Dvořák".
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- Zdeněk_Dvořák subject Category:1981_births.
- Zdeněk_Dvořák subject Category:Charles_University_in_Prague_alumni.
- Zdeněk_Dvořák subject Category:Charles_University_in_Prague_faculty.
- Zdeněk_Dvořák subject Category:Czech_mathematicians.
- Zdeněk_Dvořák subject Category:Graph_theorists.
- Zdeněk_Dvořák subject Category:Living_people.
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- Zdeněk_Dvořák comment "Zdeněk Dvořák (born 1981) is a Czech mathematician specializing in graph theory.Dvořák was born April 26, 1981, in Nové Město na Moravě.He competed on the Czech national team in the 1999 International Mathematical Olympiad, and in the same year in the International Olympiad in Informatics, where he won a gold medal. He earned his Ph.D. in 2007 from Charles University in Prague, under the supervision of Jaroslav Nešetřil.".
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