Volume IV
VOL IV
Geombinatorics Quarterly
July 1994 (Volume IV, Issue 1)
Editors Page | 3 | |
New Essays |
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Coloring R with the respect to Different Metrics | by Izak Broere | 4 |
Sets of Points in the Plane with Few Isosceles Triangles | by Paul Erdös | 10 |
Quadrangles, Pentagons, and Computers, Revisited | by Branko Grünbaum | 11 |
How to Represent Measurement Errors? | by Vladik Kreinovich | 17 |
A Triangle-Free 4-chramatic Graph in the Plane | by Paul O’Donnell | 23 |
Letters to the Editor |
Robert Hochberg and Paul O’Donnell | 30 |
October 1994 (Volume IV, Issue 2)
Editors Page | ||
New Essays |
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Geombinatoric Problems of Environmentally Safe Manufacturing and Linear Logic | by Daniel E. Cooke, Richard Duran, Ann Gates, and Vladik Kreinovich | 35 |
Equidistant Points in the Plane | by Branko Grünbaum | 36 |
Good Packings in Bad Coverings | by Paul Erdös | 49 |
Uniform Tilings of 3-Space | by Branko Grünbaum | 49 |
Errata |
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Corrections for Sets of Points in the Plane with Few Isosceles Triangles |
by Paul Erdös | 57 |
Recent Books | 58 |
January 1995 (Volume IV, Issue 3)
Editors Page | 63 | |
New Essays | ||
A 4-Chromatic Unit DIstance Graph With No Triangles |
64 | |
The Parabolic 3-Space | by Paul Erdös | 77 |
Which Algorithms are Feasible and Which are not Depends on the Geometry of Space-Time | by Alexander Soifer | 80 |
Recent Books | 98 |
April 1995 (Volume IV, Issue 4)
Editors Page | 103 | |
New Essays | ||
Some Problems Arising from Unit-Distance Graphs with no Triangles |
by Kiran B. Chilakarmarri | 104 |
Squares in a Square | by Paul Erdös, Alexander Soifer | 110 |
The Angle-side Reciprocity of Quadrangles | by Branko Grünbaum | 115 |
Unit-Distance Preserving Theorem is Logically Non-Trivial | by Olga Kosheleva, Vladik Kreinovich… | 119 |
Solutions of Previsoudly Published Problems |
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Venn Diagrams: Announcement of some new results | by Kirran B Chilakamarri, Peter Hamburger, Raymond E Pippert | 129 |
Recent Books | 138 |