411 VELIKANOV 



of rods of heterogeneous material. The main results of 

 Vekua in singular integral equations are included in the mono- 

 graph of N. I. Muskhelishvili, "Singular Integral Equations" 

 (1946). The work of Vekua in differential and integral equations 

 has been utilized in the solution of problems in the theory of 

 elasticity. Vekua also studied the general properties of the so- 

 lutions of a wide range of elliptical partial differential equations 

 and investigated the general boundary problems, which are im- 

 portant in the bending of the surfaces and in the theory of elastic 

 shells. 



As of 1961, Vekua was a Member of the Presidium of the 

 Siberian Branch U.S.S.R. Academy of Sciences. 

 Bibliography: 



New Methods of Solving Elliptical Equations. Moscow - 

 Leningrad: 1948. 



Systems of differential equations of the first order of the 

 elliptical type, and boundary problems with their use in the 

 theory of shells. Mat. Sbornik, New Series, 1952, 31, #2. 

 Stationary singular points of generalized analytical functions. 

 Doklady Akad. Nauk S.S.S.R. 145, #1, 24-27 (1962). 

 Biography: 



A. G. Kurosh and others, eds. Thirty Years of Mathematics 

 in the U.S.S.R., 1917-1947. Collection of articles. Moscow- 

 Leningrad: 1948. 

 Office: V. A. Steklov Institute of Mathematics of USSR 



Academy of Sciences 

 1-y Akademicheskii Proyezd, 28 

 Moscow, USSR 

 Residence: Novopeschanaya, Korp. 25 



Moscow, USSR 

 Telephone: D7 19 60 



VELIKANOV, MIKHAIL ANDREEVICH (Hydrologist and 

 Hydrodynamicist ) 

 M. A. Velikanov was born January 22, 1879. After graduat- 

 ing from the Institute of Engineers of Lines of Communication, 

 he worked as an engineer on the Siberian rivers Ob' and Yeni- 

 sei, and in 1912-1921 on field studies of the rivers: Sukhona, 

 North Dvina, Bug, Berezina, Volga, and Tom'. He taught in 

 1922-1929 at the Moscow Technical College, in 1930-1941 at the 

 Moscow Hydrometeorological Institute, in 1942-1943 at the 

 Central Asiatic University in Tashkent, in 1945-1954 at the 

 Moscow University. Since 1939 he has been a Corresponding 



