Thomas Callister Hales, Date of Birth, Place of Birth

Thomas Callister Hales

American mathematician

Date of Birth: 04-Jun-1958

Place of Birth: San Antonio, Texas, United States

Profession: mathematician, university teacher

Nationality: United States

Zodiac Sign: Gemini

Thomas Callister Hales (born June 4, 1958) is an American mathematician working in the areas of representation theory, discrete geometry, and formal verification.
In representation theory he is known for his work on the Langlands program and the proof of the fundamental lemma over the group Sp(4) (many of his ideas were incorporated into the final proof, due to Ngô B?o Châu).
In discrete geometry, he settled the Kepler conjecture on the density of sphere packings and the honeycomb conjecture.
In 2014, he announced the completion of the Flyspeck Project, which formally verified the correctness of his proof of the Kepler conjecture.