Table of Contents, July 2008 (Volume XVIII, Issue 1)

Geombinatorics Quarterly Vol XVII

July 2008 to April 2009


Issue 1, Issue 2, Issue 3, Issue 4


Table of Contents

July 2008 (Volume XVIII, Issue 1)

Editors Page……………………………………………………………………………………………4

New Essays

  • [4,3]-Configurations with Many Symmetries
    By Branko Grünbaum…………………………………………………………………………………………5

 

 

  • Rational Trigonometry: Computational Viewpoint
    By Olga Kosheleva………………………………………………………………………………18

 

  • Equidecomposability (Scissors Congruence) of Polyhedra in R3 and R4 is Algorithmically decidable: Hilbert’s 3rd Problem Revisited
    By Vladik Krienovich……………………………………………………………………………26

 

  • Reflective Polyhedra
    By Zsolt Lengvarszky……………………………………………………………………………35

 

New Books……………………………………………………………………………………………46

Subscription Form…………………………………………………………………………………47

 

Table of Contents

October 2008 (Volume XVIII, Issue 2)

Editors Page……………………………………………………………………………………………52

New Essays

  • On the chromatic number of real and rational spaces
    By Josef Cibulka……………………………………………………………………………………53

 

  • A note on Convex Realizability of Arrangements of Pseudocircles
    By Johann Linhart and Ronald Ortner…………………………………………………………66

 

  • Tromino Tiling Deficient Cubes of Side Length 2n
    By Norton Starr……………………………………………………………………………………72

 

Book Reviews

  • There is More to Coloring than Colors, a review of Alexander Soifer’s “Mathematical Coloring Book”
    By Branko Grünbaum……………………………………………………………………………88

 

  • Review of Alexander Soifer’s “mathematical Coloring Book”
    By Peter D. Johnson, Jr………………………………………………………………………91

 

New Books………………………………………………………………………………………93

Subscription Form………………………………………………………………………………95

 

Table of Contents

January 2009 (Volume XVIII, Issue 3)

Editors Page………………………………………………………………………100

New Essays

  • Untangle: Knots in Combinatorial Game Theory
    By Sandy Ganzell and Alex Meadows…………………………………………………………101

 

  • Vertex-to-Vertex Packings of Congruent Regular Polygons
    By Heiko Harborth…………………………………………………………………………………109

 

  • Points in a Triangle Forcing Small Triangles
    By Matthew Kahle…………………………………………………………………………………114

 

  • On Graphs that Cannot be Represented by Linked Compact Sets
    By Aleksandr Kuz’minykh………………………………………………………………………129

 

Books Reviews

  • Encyclopedia of Graph Coloring and the Story of its Creation: An Easy in Five Parts, a review of G. Chartrand and P. Zhang’s book “Chromatic Graph Theory
    By Alexander Soifer………………………………………………………………………………135

 

 

Letters to the Editor
By Johann Linhart and Ronald Ortner…………………………………………………………141

 

Recent Books…………………………………………………………………………………142

Subscription form…………………………………………………………………………143

Table of Contents

April 2009 (Volume XVIII, Issue 4)

Editors Page…………………………………………………………………………………148

New Essays

  • Explicit Colorings of Z3 and Z4 with Four Colors to Forbid Arbitrary Distances
    By Jeffery Burkert…………………………………………………………………………………149

 

  • Small Unstretchable Simplicial Arrangements of Pseudolines
    By Branko Grünbaum………………………………………………………………………………153

 

  • Which Pairs of Distances can be Forbidden by a 4-Coloring of Q3?
    By Peter Johnson and Michael Tiemeyer……………………………………………………161

 

  • A New Proof of the Sylvester-Gallai Theorem
    By Johnathan Lenchner………………………………………………………………………………171

 

  • Tiling a Deficient Board by P-Pentonimoes
    By Catalin Nitica and Viorel Nitika………………………………………………………………175

 

  • A Note on Sum of Squared Distances between Vertices of a Convex Polygon
    By Pavel Novotný…………………………………………………………………………………185

 

Book Reviews
          “A Thing of Beauty a Joy For Ever,” A review of John H. Conway, Heidi Burgiel and Chaim Goodman-Strauss’s book “The Symmetries of Things”
By Alexander Soifer…………………………………………………………………………187

 

Subscription form…………………………………………………………………………191