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Sphere Packings, III. Extremal Cases

In: The Kepler Conjecture

Author

Listed:
  • Thomas C. Hales

    (University of Pittsburgh, Department of Mathematics)

Abstract

This paper is the third in a series of six papers devoted to the proof of the Kepler conjecture, which asserts that no packing of congruent balls in three dimensions has density greater than the face-centered cubic packing. In the previous paper in this series, a continuous function f on a compact space was defined, certain points in the domain were conjectured to give the global maxima, and the relation between this conjecture and the Kepler conjecture was established. This paper shows that those points are indeed local maxima. Various approximations to f are developed, that will be used in subsequent papers to bound the value of the function f. The function f can be expressed as a sum of terms, indexed by regions on a unit sphere. Detailed estimates of the terms corresponding to triangular and quadrilateral regions are developed.

Suggested Citation

  • Thomas C. Hales, 2011. "Sphere Packings, III. Extremal Cases," Springer Books, in: Jeffrey C. Lagarias (ed.), The Kepler Conjecture, chapter 5, pages 135-176, Springer.
    • Handle: RePEc:spr:sprchp:978-1-4614-1129-1_5
    DOI: 10.1007/978-1-4614-1129-1_5
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