An international team of mathematicians led by University of Pittsburgh Professor Thomas Hales has delivered a formal proof of the Kepler conjecture, a famous problem in discrete geometry. The team’s paper is published in the journal Forum of Mathematics, Pi. Prof. Hales demonstrates his solution to the Kepler conjecture. Image credit: Bob Kalmbach / University of Michigan. The essay ‘On the six-cornered snowflake,’ which was written by the...
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