251 MUSKHELISHVILI 



and Q. B. Kol'tsevaya. Separating 3.5-dimethylphenol by 

 alkylation. Chemistry and Technology of Fuel and Oil, 

 1957, #2. 

 Office: Scientific-Research Institute of Plastics 



Moscow, USSR 



MURATQV, MIKHAIL VLADIMIRQVICH (Geologist) 



M. V. Muratov has been working at the U.S.S.R. Academy of 



Sciences Institute of Geology. In June 1962 he was elected a 



Corresponding Member of the U.S.S.R. Academy of Sciences. 



Bibliography: 



and P. V. Fedorov, A. R. Geptner. Time appearance of 

 Mediterranean elements in the fauna of the Black Sea. 

 Doklady Akad. Nauk 138, #1, 181-83 (1961). 



Office: Institute of Geology of USSR Academy of Sciences 



Pyzhevskii Pereulok, 7 

 Moscow, USSR 



MUSKHELISHVILI, NIKOLAI IVANOVICH (Mathematician and 

 Mechanics Expert) 



N. I. Muskhelishvili was born February 16, 1891. In 1914 

 he graduated from Petersburg University. He became a pro- 

 fessor at Tbilisi State University in 1922 and also at the Poly- 

 technic Institute in Tbilisi. On his initiative, the Tbilisi Mathe- 

 matics Institute was established in 1935. Muskhelishvili was 

 elected a Corresponding Member of the U.S.S.R. Academy of 

 Sciences in 1933 and in 1939 an Academician. In 1941 he be- 

 came the President of the Georgian S.S.R. Academy of Sciences. 

 He has been a member of the Communist Party of the Soviet 

 Union since 1940 and a Deputy to the U.S.S.R. Supreme Soviet 

 during all the six convocations. In 1945 he was a Hero of 

 Socialist Labor and in 1941 and 1947, a recipient of Stalin 

 Prizes. 



Muskhelishvili' s main investigations are in the theory of 

 elasticity, integral equations, and boundary -value problems in 

 the theory of functions. He utilized the theory of functions of a 

 complex variable in problems of the theory of elasticity. With 

 the aid of complex representation of displacements and ten- 

 sions, the main problems of a two dimensional theory of elas- 

 ticity in a static case are reduced. The work of Muskhelishvili 

 and his students solved the major problems of the two- 

 dimensional theory of elasticity in a static case. Investigations 

 were also carried out by Muskhelishvili and his students in the 

 theory of linear boundary -value problems of analytical functions 



