Table of Contents, July 2012 (Volume XXII, Issue 1)

Geombinatorics Quarterly Vol XXII

July 2012 to April 2013


Issue 1, Issue 2, Issue 3, Issue 4


Table of Contents

July 2012 (Volume XXII, Issue 1)

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

New Essays

  • Incenters and Incircles
    By Branko Grünbaum………………………………………………………………………5

 

 

  • The Birth of a Problem
    By Alexander Soifer…………………………………………………………………………24

 

Table of Contents

October 2012 (Volume XXII, Issue 2)

Editors Page……………………………………………………………………………………44

New Essays

  • Toward an Uncountable Analogue of Gallai’s Theorem for Colorings of the Plane
    By Jeremy F. Alm……………………………………………………………………………………45

 

  • The (3, 5, 7) Triangle is Ramsey in E2
    By Dwight Bean………………………………………………………………………………………51

 

  • A Saturated Packing of 37 Regular Tetrahedra
    By Peter Fazekas and Otto Röschel………………………………………………………………58

 

  • Midpoint Polygon Inversion Revisited
    By Branko Grünbaum………………………………………………………………………………63

 

  • Frobenius Problems in Intergral Domain
    By Peter Johnson and Nicole Looper………………………………………………………………71

 

Subscription Form………………………………………………………………………….87

 

 

Table of Contents

January 2013 (Volume XXII, Issue 3)

Editors Page………………………………………………………………………………………92

New Essays

 

  • IDeflection constructions
    By Branko  Grünbaum………………………………………………………………………………93

 

  • Unbounded Strictly Convex Bodies with Unusual Topological Properties in the Hyperbolic Space
    By Aleksandr Kuz’minykhi…………………………………………………………………………….101

 

  • Tiling a unit square with 8 squares
    By Iwan Praton…………………………………………………………………………………………109

 

  • Bounds for Covers of Unit Arcs
    By John E. Wetzel……………………………………………………………………………………116

 

Letters to the Editor

  • A Lovely bunch of coconuts
    By John E. Wetzel……………………………………………………………………………………123

 

Recent Books…………………………………………………………………………………125

Subscription Form……………………………………………………………………………127

 

Table of Contents

April 2013 (Volume XXII, Issue 4)

Editors Page…………………………………………………………………………………………133

New Essays

Reminiscences of Paul

Dangerous Events with Paul Erdös
By Heiko Harborth…………………………………………………………………………………135

  • Dinner with Paul Erdös and Johann Pachelbel
    By Cecil Rousseau…………………………………………………………………………………137

 

  • Personal Memories of Erdös
    By Hegle Tverberg………………………………………………………………………………139

 

Problems of Paul Erdös

  • Paul Erdös at 100 and his Problem Book: an Etude in Six Movements
    By Alexander Soifer……………………………………………………………………………………140

 

Essays in Erdosian Mathematics

  • Enumeration of self-intersecting and simple concave quadrilaterals via paired partitions
    By Orlando B. Alonso…………………………………………………………………………………157

 

 

  • Did you Really Prove That?
    By Branko Grünbaum………………………………………………………………………………..171

 

  • New Euler Relation Questions for Convex 3-Dimensional Polytopes
    By Joseph Malkevitsch………………………………………………………………………………178

 

  • Two and Half Billion Years of Distance Research
    By Filip Moriċ and János Pach……………………………………………………………………182

 

  • The Odd-Distance Graph
    By Moshe Rosenfeld………………………………………………………………………………192

 

Subscription Form…………………………………………………………………………183