Vol XXIX 2019 – 2020

Vol XXIX 2019 – 2020

Geombinatorics

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

July 2019 – April 2020

Issue 1   Issue 2   Issue 3    Issue 4 


Issue 1 (July 2019)


CONTENTS XXIX (1)

Editor’s Page………………….…………………………………..4

New Essays

  • Polyominoes with maximally many holes……………………………..5
    by Matthew Kahle and Érika Roldán
  • Generalizations of the No-Three-in-a-Line Problem………….…21
    by Dustin LaFollette and Anant Godbole
  • The Smallest Art Gallery Not Guarded by Every Third Vertex…24
    by Marijn J.H. Heule
  • The International Mathematics Union Abacus Medal……………33
    by Alexander Soifer
  • On a Geometric Proof of Sums of Powers ……………………………….37
    by Joseph Zaks

Recent Books……………………………..………….………42


CONTENTS XXIX (2)


CONTENTS XXIX (3)


CONTENTS XXIX (4)