Andrey Tikhonov (mathematician)

Andrey Tikhonov
Tikhonov in 1975
Born	(1906-10-17)17 October 1906 Gzhatsk, Russian Empire
Died	7 October 1993(1993-10-07) (aged 86) Moscow, Russia
Alma mater	Moscow State University
Known for	Important contributions to topology, functional analysis, mathematical physics, ill-posed problems; Tychonoff spaces, Tychonoff's theorem, Tikhonov regularization, Tikhonov's theorem (dynamical systems), magnetotellurics geophysical method.
Scientific career
Fields	Mathematics
Institutions	Moscow State University
Doctoral advisor	Pavel Alexandrov
Doctoral students	Aleksandr Andreyevich Samarskiĭ Alexei Georgievich Sveshnikov

Andrey Nikolayevich Tikhonov (Russian: Андре́й Никола́евич Ти́хонов; 17 October 1906 – 7 October 1993) was a leading Soviet Russian mathematician and geophysicist known for important contributions to topology, functional analysis, mathematical physics, and ill-posed problems. He was also one of the inventors of the magnetotellurics method in geophysics. Other transliterations of his surname include "Tychonoff", "Tychonov", "Tihonov", "Tichonov".