Georgy Abramovich Grinberg (born 16.06.1900) is a Soviet physicist and a corresponding member of the USSR Academy of Sciences (1946). He was born in St Petersburg. He graduated from the Petrograd Polytechnic Institute (1923), where he worked until 1955 (professor from 1930, head of a department from 1946). In 1918-30 and from 1941 he has worked at the Leningrad Physico-Technical Institute of the USSR Academy of Sciences (head of a department from 1946).
His work is mainly in mathematical physics and its applications. He has carried out research on the theory of the motion of charged particles in electric and magnetic fields, on the theory of the passage of current through vacuum devices in steady and transient regimes, on the theory of the diffraction of electromagnetic waves, on magnetohydrodynamics and on the theory of elasticity. He has created a general theory of the focusing of electron and ion beams and a number of methods of calculating electrostatic and magnetic fields. He has developed the theory of coastal refraction, and proposed and extended the method of shadow currents, a method of solving a wide class of inhomogeneous problems of mathematical physics and a new approach to the solution of heat and diffusion problems; he has carried out research on the theory of Fredholm integral equations with a kernel depending on the modulus of the difference of the variables, on the theory of thermal breakdown, on the decay of plasma in a magnetic field and on other subjects.
The USSR State Prize (1949).