Alexander Gelfond

Alexander Gelfond (1906-1968) was a prominent Soviet mathematician known for his work in number theory and transcendental numbers. He is particularly renowned for Gelfond's theorem, which proved that if \( a \) is a transcendent number and \( b \) is an algebraic number that is not equal to 0 or 1, then \( a^b \) is also a transcendental number.