## Thomas C. Hales and Samuel P. Furgeson Receive the 2007 Robbins
Prize

At the January 2007 Annual meeting of the American Mathematical
Society (AMS) in New Orleans, the David P. Robbins prize was awarded
to **Thomas C. Hales** and **Samuel P. Furgeson** for their
solution of the Kepler conjecture about the densest arrangement of
spheres in space. Their paper "A proof of the Kepler conjecture" was
published in Annals of mathematics, 2005, Vol. 162, pp.
1065-1185.

In their proof, Dr. Hales and Dr. Furgeson use interval
computations. In his response to this award, Dr. Hales explicitly
thanked those who developed the tools of interval computations (Notices
of the American Mathematical Society, 2007, Vol. 54, No. 4, pp.
534-535).
According to the official announcement, the Robbins Prize was
established in 2005 in memory of David P. Robbins, a prolific
mathematician whose work (much of it classified) was in discrete
mathematics. The prize is given for a paper that (1) reports on
novel research in algebra, combinatorics, or discrete mathematics,
(2) has a significant experimental component, (3) is on a topic
broadly accessible, and (4) provides a simple statement of the
problem and clear exposition of the work. This prize is awarded by
the AMS Council every three years. This is the first time the prize
was awarded.

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