Thomas Callister Hales

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Thomas Hales

Born June 4, 1958 (1958-06-04) (age 53)
Residence United States
Nationality American
Fields Mathematics
Institutions University of Pittsburgh
Alma mater Princeton University
Doctoral advisor Robert Langlands
Known for Proving Kepler conjecture

Thomas Callister Hales (born June 4, 1958) is an American mathematician. He is known for his 1998 computer-aided proof of the Kepler conjecture, a centuries-old problem in discrete geometry which states that the most space-efficient way to pack spheres is in a pyramid shape. Hales also proved the honeycomb conjecture.

[edit] Education

He received his Ph.D. from Princeton University.

[edit] Career in mathematics

Hales, formerly at the University of Michigan, and now University of Pittsburgh Mellon Professor of mathematics, advocates the formalization of mathematics to ensure rigor in an era where proofs are becoming increasingly complex and computers are becoming necessary to perform verification. Hales's current project, called Flyspeck, seeks to formalize his proof of the Kepler conjecture in the computer theorem prover HOL Light. [1] [2] [3]

[edit] Notes

  1. ^ Hales's page at the University of Pittsburgh Math Department
  2. ^ Flyspeck Project
  3. ^ Hales solves oldest problem in discrete geometry The University Record (University of Michigan), September 16, 1998
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