Dirac, dih RAK, Paul Adrien Maurice (1902-1984), a British theoretical physicist, became noted for his mathematical equation describing the behavior of the electron. Dirac also demonstrated the fundamental unity of two forms of quantum mechanics, wave mechanics and matrix mechanics (see Quantum mechanics). In addition, he was the first to successfully apply relativity to quantum mechanics (see Relativity). Dirac shared the 1933 Nobel Prize in physics with the Austrian physicist Erwin Schrodinger for his equation and his other contributions to quantum mechanics.