English

Sphere packings III

Metric Geometry 2007-05-23 v2

Abstract

This is the fifth in a series of papers giving a proof of the Kepler conjecture, which asserts that the density of a packing of congruent spheres in three dimensions is never greater than π/180.74048...\pi/\sqrt{18}\approx 0.74048.... This is the oldest problem in discrete geometry and is an important part of Hilbert's 18th problem. An example of a packing achieving this density is the face-centered cubic packing. This paper carries out the third step of the program outlined in math.MG/9811073: A proof that if all of the standard regions are triangles or quadrilaterals, then the total score is less than 8\pt8 \pt (excluding the case of pentagonal prisms).

Keywords

Cite

@article{arxiv.math/9811075,
  title  = {Sphere packings III},
  author = {Thomas C. Hales},
  journal= {arXiv preprint arXiv:math/9811075},
  year   = {2007}
}

Comments

22 pages. Fifth in a series beginning with math.MG/9811071