Sergey Mergelyan
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Sergey Mergelyan (Armenian: Սերգեյ Մերգելյան; born 19 May 1928 in Simferopol, Crimea, Ukraine) is an Armenian scientist. He graduated from Yerevan State University in 1947. In 1952 he was awarded USSR State Prize. In 1953, when he was just 25 he became corresponding member of the Academy of Sciences of the USSR (now Russian Academy of Sciences). He is also member of National Academy of Sciences of Armenia.
Sergey Mergelyan played a leading role in establishing Yerevan Scientific Research Institute of Mathematical Machines (YerSRIMM) in 1956. He became the first director of the institute which many called "Mergelyan Institute".
His works include theory of functions of complex variables, theory of approximation, and theory of potential and harmonic functions. In 1951 he formulated the famous result from complex analysis called Mergelyan's theorem.