Volume II


Geombinatorics Quarterly

July 1992 (Volume II, Issue 1)

Obituary of My friend and coauthor, Tibor Gallai By Paul Erdös 5
Distinct Distances Between Points in the Plane By Paul Erdös 7
The Fractional Chromatic Number of the Plane by David Fisher and Daniel Ullman 8
Forbidding Prescribed Distances for Denigrated Colors By Don Grenwell and Peter D. Johnson Jr 13

September 1992  (Volume II, Issue 2)

Distances Determined by Points in the Plane II By Paul Erdös 24
Venn Diagrams II By Branko Grünbaum 25
Is the Chromatic Number of the Plane Robust By Paul C. Kainen 33
Corrections for “Obituary of My Friend and Coauthor, “Tibor Gallai” By Paul Erdös 37

January 1993 (Volume II, Issue 3)

Old Snapshots of the Young By Marta Sved 46
New Essays    
Infinite Uniform Polyhedra By Branko Grünbaum 53
Functions Which Preserve Unit Distance By Don Greenwell and Peter D. Johnson, Jr 61


Distance Determined by Points in the Plane II By Paul Erdös 65

April 1993 (Volume II, Issue 4)

New Essays    
Triangles in Convex Polygons By Paul Erdös and Alexander Soifer 72
Holey Isogonal Columns By Branko Grünbaum 75
Is Snaky a Winner By Frank Harary 79
A Large Independent Set in the Unit Distance Graph By Robert Hochberg and Paul O’Donnell 83
O(n^3) Bounds for the Area of a Convex Lattice n-gon By Stanley Rabinowitz 85