Achilles Papapetrou
Achilles Papapetrou (; February 2, 1907 – August 12, 1997) was a Greek theoretical physicist, who contributed to the general theory of relativity. He is known for the Mathisson–Papapetrou–Dixon equations, the Majumdar–Papapetrou solution, and the Weyl−Lewis−Papapetrou coordinates of gravity theory.He worked on exact solutions of Einstein's field equations and long sought a solution for rotating masses, which, however, were only found by Roy Kerr. Papapetrou was then the first who recognized and jubilantly welcomed Kerr's breakthrough announced at the Texas Symposium on Relativistic Astrophysics, Dallas, December 1963. Provided by Wikipedia
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