Vol V 1995-1996

Geombinatorics Quarterly

Vol V

July 1995 – April 1996


Volume 1, Volume 2, Volume 3, Volume 4


Contents

July 1995 (Volume V, Issue 1)

Editors Page………………………………………………………………..3

  • Issai Schur 1875-1995
  • On the 120th Anniversary of the Birth of Schur
    by Paul Erdös………………………………………………………….4
  • Issai Schur: Ramsey Theory before Ramsey
    by Alexander Soifer…………………………………………………6
  • New Essays
  • How to Convexify a Polygon
    by Branko Grünbaum……………………………………………24
  • A 40 Vertex 4-Chromatic Triangle-Free Unit Distance Graph
    by Paul O’Donnell………………………………………………….30
  • Towards a Simpler Proff of the Brouwer Fixed Point Theorem
    by Joseph Zaks……………………………………………………..35
  • Recent Books……………………………………………………….38

Contents

October (Volume V, Issue 2)

  • Editors Page……………………………………………………….44
  • New Essays
  • TChoosability versus Chromaticity
    by Tommy R. Jensen, Bjarne Toft…………………………45
  • The List-Chromatic Number of Euclidean Space
    by James H. Schmerl……………………………………………65
  • Unit-Distance Preserving Theorem is Logically Non-Trivial
    by Olga Kosheleva, Vladik Kreinovich…………………..69
  • On the Products of Cross-Rations on Diagonals of Polygons a Short Note
    by Joseph Zaks……………………………………………………79
  • Book Reviews
  • Graph Coloring Problem
    by Tommy R Jenson, Bjarne Toft, Review by Alexander Soifer..81
  • Letters to the Editor
    Letter from Prof. Cr. Berndt Wegner, Editor-in-Chief
    Zentralblatt Fur Mathematik/Mathematics Abstracts…..84
  • Recent Books……………………………………………………….86

Contents 

January 1996 (Volume V, Issue 3)

  • Editors Page
  • New Essays
  • Lower Bonds on the Independence Number
    by Edward Bertram, Peter Horàk…………………………………93
  • About Two Definitions of Fractional Chromatic Number
    by P.D. Johnson Jr………………………………………………………..99
  • The Necessity to Check Consistency Explains the use of Parallelpipeds in Describing Uncertainty
    by Driss Misane, Vladik Kreinovich…………………………….109
  • Squares in a Square II
    by Alexander Soifer…………………………………………………..121

Recent Books………………………………………………………………..123


Contents 

April 1996 (Volume V, Issue 4)

  • Editors Page……………………………………………………………….128
  • New Essays
  • Distances between Points in the Plane
    by Paul Erdös…………………………………………………………….129
  • Snaky is an Edge-to-Edge Looser
    by Heiki Harborth, Markus Seemann…………………………132
  • Some 4-Chromatic Unit-Distance Graphs Without Small Cycles
    by Robert Hochberg, Paul O’Donnell…………………………137
  • How to measure arbitrary distances using a given slandered length
    by Olga Kosheleva, Vladik Kreinovich………………………..142
  • Odd Integral Distances among Points in the Plane
    by Moshe Rosefeld……………………………………………………156