Results 1 to 10 of about 273 (99)

The Arrangement of the Osteons and Kepler’s Conjecture

open access: yesApplied Sciences (Switzerland), 2023
The studies of bone tissue have mainly highlighted the morphometrical characteristics of the osteons, rather than their spatial distribution. This work aimed to verify if the topographical distribution of the osteons responds to geometrical order.
Marco Zedda
exaly   +6 more sources

The symmetry of the Kepler problem, the inverse Ligon-Schaaf mapping and the Birkhoff conjecture. [PDF]

open access: yesPLoS ONE, 2018
The Ligon-Schaaf regularization (LS mapping) was introduced in 1976 and has been used several times. However, we are not aware of any direct usage of the inverse mapping, perhaps since it appears at first sight to be quite complex, involves the use of a ...
Thomas Sumner Ligon
doaj   +7 more sources

A FORMAL PROOF OF THE KEPLER CONJECTURE [PDF]

open access: yesForum of Mathematics, Pi, 2017
This article describes a formal proof of the Kepler conjecture on dense sphere packings in a combination of the HOL Light and Isabelle proof assistants. This paper constitutes the official published account of the now completed Flyspeck project.
THOMAS HALES   +21 more
doaj   +8 more sources

A Formulation of the Kepler Conjecture [PDF]

open access: yesDiscrete and Computational Geometry, 2006
23 pages.
Thomas C Hales, Hales Thomas C
exaly   +4 more sources

Historical Overview of the Kepler Conjecture [PDF]

open access: yesDiscrete and Computational Geometry, 2006
This paper is the first 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. After some preliminary comments about the face-centered cubic and hexagonal close packings, the history of the Kepler problem is ...
Thomas C Hales, Hales Thomas C
exaly   +2 more sources

A Revision of the Proof of the Kepler Conjecture [PDF]

open access: yesDiscrete and Computational Geometry, 2009
The Kepler conjecture asserts that no packing of congruent balls in three-dimensional Euclidean space has density greater than that of the face-centered cubic packing. The original proof, announced in 1998 and published in 2006, is long and complex. The process of revision and review did not end with the publication of the proof.
Tobias Nipkow   +2 more
exaly   +3 more sources

Bounds for Local Density of Sphere Packings and the Kepler Conjecture [PDF]

open access: yesDiscrete and Computational Geometry, 2002
27 pages, latex, 1 ...
Lagarias J C, J C Lagarias
exaly   +3 more sources

A proof of the Kepler conjecture [PDF]

open access: yesAnnals of Mathematics, 2005
Thomas C Hales
exaly   +2 more sources

Kepler’s Conjecture and the Dodecahedral Conjecture

open access: yesMitteilungen Der Deutschen Mathematiker-Vereinigung, 1996
Karoly Bezdek
exaly   +2 more sources

Prototyping "Systems that Explain Themselves" for Education [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2018
"Systems that Explain Themselves" appears a provocative wording, in particular in the context of mathematics education – it is as provocative as the idea of building educational software upon technology from computer theorem proving.
Alan Krempler, Walther Neuper
doaj   +1 more source

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