Gregory G. Menshikov has turned 70

Professor Dr. Gregory Menshikov was born in St.Petersburg (then Leningrad) in 1931. His childhood was greatly affected by the Second World War. Like many other kids from Leningrad, Gregory was evacuated from the city to the Moscow region. After the war, he returned back, finished high school, and entered the Department of Mathematics and Mechanics of the Leningrad State University. In 1954, he received a M.Sc. degree in Mathematics with honors. In the beginning of his research career, Gregory Menshikov considered Computational Mathematics and Radio Engineering as two main areas of interest. At that time, such a combination was not unusual, because a lot of computations were performed by analog computers and specialized digital electronic devices. In 1962, Gregory Menshikov completed his postgraduate studies in Leningrad Electrotechnical Institute of Communication and earned his Ph.D. degree from Leningrad Institute of Precision Mechanics and Optics. In his dissertation, he developed a theoretical basis for digital devices for the numerical solution of ordinary differential equations and for computation of functional polynomials. After obtaining a Ph.D. degree, Gregory Menshikov continued his research in the theory of binary approximation. In 1968 Gregory Menshikov finished his post-doctoral studies at the Electrotechnical Institute of Communication and received a D.Sc. (Habilitation) degree in Theoretical Radio Engineering. After 1968, Gregory Menshikov continued his research in the areas of computational mathematics and radio engineering with emphasis on mathematics. In 1972, he accepted an invitation to join the Department of Mathematics in Leningrad Elec-trotechnical Institute where he worked until 1984. Shortly after his arrival, he was promoted to the rank of a Full Professor. During these years, his main research areas were theory of ordinary differential equations and theory of approximation. In the mid-80's, a lucky chance resulted in Gregory Menshikov's acquaintance with interval mathematics and, since that time, all his professional activity is inseparable from the interval analysis and its applications. Gregory Menshikov can, thus, be called one of the first " intervalists " in Russia. He applied interval approach to the analysis of pulse radio engineering devices.