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Rudolf Halin

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Name
  
Rudolf Halin


Rudolf Halin Graphentheorie by Rudolf Halin AbeBooks

Died
  
November 14, 2014, Molln, Schleswig-Holstein, Germany

Rudolf Halin (February 3, 1934, Uerdingen – November 14, 2014, Mölln) was a German graph theorist, known for defining the ends of infinite graphs, for Halin's grid theorem, for extending Menger's theorem to infinite graphs, and for his early research on treewidth and tree decomposition. He is also the namesake of Halin graphs, a class of planar graphs constructed from trees by adding a cycle through the leaves of the given tree; earlier researchers had studied the subclass of cubic Halin graphs but Halin was the first to study this class of graphs in full generality.

Contents

Halin earned his doctorate from the University of Cologne in 1962, under the supervision of Klaus Wagner and Karl Dörge, after which he joined the faculty of the University of Hamburg. In February 1994, a colloquium was held at the University of Hamburg in honor of Halin's 60th birthday.

Research papers

  • Halin, R. (1964), "Über unendliche Wege in Graphen", Mathematische Annalen, 157 (2): 125–137, MR 0170340, doi:10.1007/bf01362670 .
  • Halin, R. (1965), "Über die Maximalzahl fremder unendlicher Wege in Graphen", Mathematische Nachrichten, 30: 63–85, MR 0190031, doi:10.1002/mana.19650300106 .
  • Halin, R. (1971), "Studies on minimally n-connected graphs", Combinatorial Mathematics and its Applications (Proc. Conf., Oxford, 1969), London: Academic Press, pp. 129–136, MR 0278980 .
  • Halin, R. (1974), "A note on Menger's theorem for infinite locally finite graphs", Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg, 40: 111–114, MR 0335355, doi:10.1007/BF02993589 .
  • Halin, R. (1976), "S-functions for graphs", Journal of Geometry, 8: 171–186, MR 0444522, doi:10.1007/BF01917434 .
  • Textbooks

  • Halin, R., Graphentheorie. Vols. I and II published in 1980 and 1981 respectively by Wissenschaftliche Buchgesellschaft. Combined 2nd ed. published in 1989 by Wissenschaftliche Buchgesellschaft.
  • References

    Rudolf Halin Wikipedia