Vol XXVI 2016 – 2017

Vol XXVI 2016-2017

Geombinatorics

A quarterly journal on open problems of combinatorial and discrete geometry and related areas.


July 2016 – April 2017

Issue 1, Issue 2Issue 3Issue 4


Table of Contents

July 2016 (Volume XXVI, Issue 1)

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

New Essays

  • Are All Convex Polyhedra Fully Truncable?……………….……12
    by Branko Grünbaum
  • The Maximum Crossing Number of the Petersen Graph……..,….16
    by Heiko Harborth
  • Coloring Euclidean Spaces So That All Translates of a Given Set Are Rainbow………………………23
    by Peter Johnson and John Ryan

Reviews

  • A Taste for Duality: Erdős, Dilworth, Gallai, Milgram, and Mirsky………………….30
    By Alexander Soifer

 

Table of Contents

October 2016 (Volume XXVI, Issue 2)

Editor’s Page………………….…………………….………………..…………..48

New Essays

  • Covering Number Product Bound Size……..……………….……65
    by Paul Kainen
  • Graphs with No Grid Representation………………………..……80
    by János Pach
  • To Walk the Talk: A Letter to the President of IMU Shigefumi Mori……………………………….………….84
    by Alexander Soifer

 

Table of Contents

January 2017 (Volume XXVI, Issue 3)

Editor’s Page………………….…………………….……………96

New Essays

  • Golden Triangulations ……………..……………………….……97
    by Bruce Atkinson and Braxton Carrigan

 

  • A Unit Distance Graph in the Plane with Fractional Chromatic Number 383/102……………………..….122
    by Geoffrey Exoo and Dan Ismailescu

 

  • Mobilizing Ambiguity of Populism, A Review of “The Third Reich Sourcebook,”Anson Rabinbach and Sander L. Gilman (editors)………….….128
    by Alexander Soifer

 

Table of Contents

April 2017 (Volume XXVI, Issue 4)

Editor’s Page………………….…………………….……………140

New Essays

  • Geometric Symmetries Partially Explain why Some Paleolithic Signs Are More Frequent……………..………141
    by Olga Kosheleva and Vladik Kreinovich

 

 

  • On Some Indiscretions in the Mathematical Community of Russia: A Ballad in 12 Movements ………………159
    by Alexander Soifer