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Ronald C. Read
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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Ronald Cedric Read (* 19. Dezember 1924 in Croydon; β 7. Januar 2019) war ein britisch-kanadischer Mathematiker, der sich mit Graphentheorie befasste.
Read studierte an der UniversitΓ€t Cambridge und wurde 1959 an der UniversitΓ€t London promoviert (Some Enumeration Problems in Graph Theory).cite-ref-1[1] Er war Professor an der University of the West Indies in Jamaika und ab 1970 Professor an der University of Waterloo.
Neben Graphentheorie befasste er sich auch mit mathematischen Puzzles (Tangram, Fadenspiel).
1968 stellte er eine nach ihm benannte Vermutung auf, dass die Koeffizienten des Chromatischen Polynoms von Graphen unimodular sind (spΓ€ter von S. G. Hoggarcite-ref-2[2] verallgemeinert dahingehend, dass sie log-konkav sind). Das wurde 2010 von June Huh bewiesen.
Er war auch Komponist (mit UniversitΓ€tsabschlΓΌssen), spielte mehrere Instrumente und hatte in Jamaika HΓΆhlentauchen als Hobby.
Contents
β’ Schriften
β’ Weblinks
β’ Einzelnachweise
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Schriften
β’ Tangrams: 330 Puzzles, Dover 1965
β’ An Introduction to Chromatic Polynomials. Journal of Combinatorial Theory, Band 4, 1968, S. 52β71.
β’ als Herausgeber: Graph theory and computing, Academic Press 1972
β’ A Mathematical Background for Economists and Social Scientists, Prentice Hall 1972
β’ Every One A Winner; or How to avoid isomorphism search when cataloguing combinatorial configurations, Annals of Discrete Mathematics, Band 2, 1978, S. 107β120.
β’ mit P. Rosenstiehl: On the Principal Edge Tripartition of a Graph, Annals of Discrete Mathematics, Band 3, 1978, S. 195β226.
β’ mit W. T. Tutte: Chromatic Polynomials. Selected Topics in Graph Theory, Band 3, 1988, S. 15β42.
β’ mit G. F. Royle: Chromatic Roots of Families of Graphs, in: Graph Theory, Combinatorics and Applications. John Wiley, 1991, S. 1009β1029
β’ Prospects for Graph-theoretical Algorithms, Annals of Discrete Mathematics, Band 55, 1993, S. 201β210
β’ mit Robin J. Wilson: An Atlas of Graphs, Oxford, Clarendon Press 1998, Oxford Science Publications, 2005
Weblinks
Einzelnachweise
cite-note-11. β Ronald C. Read im Mathematics Genealogy Project (englisch) Vorlage:MathGenealogyProject/Wartung/id verwendet
cite-note-22. β Hoggar, Chromatic polynomials and logarithmic concavity, J. Comb. Theory B, Band 16, 1974, S. 248β254