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IN MEMORY OF SERGEI VASIL'EVICH FOMIN

On 17 August 1975 the untimely death occurred of Sergei Vasil'evich Fomin, an eminent Soviet scientist, Professor at the University of Moscow, Head of the Laboratory of Mathematical Methods in Biology of the Institute on Problems of Information Transmission of the Academy of Sciences of the USSR, and Member of the CPSU. Fomin's scientific activity embraced a wide range of problems of mathematics and its applications and received wide international recognition. He is responsible for profound investigations in the field of general topology, functional analysis, and the theory of dynamical systems. During the last 15 years he paid much attention to the use of mathematical methods in biology and had a strong influence on the development of Soviet biophysics. Fomin was born in Moscow on 9 December 1917. He was the fifth child of Vasilii Emel'yanovich Fomin, a Professor in the Faculty of Medicine of the University of Moscow. In autumn 1925 young Sergei started school, going straight into the second form, although he was not yet eight years old. While a pupil of the senior forms, he attended lectures on mathematics at the University of Moscow. Sergei Aleksievich Chaplygin, who was well-known to the Fomin family, even then thought that the boy had outstanding mathematical capabilities. After completing the ninth form young Sergei told his parents that he did not want to go to school any more and that he was ready to enter the Faculty of Mechanics and Mathematics of the University. In spite of his lack of diploma and of his age of only 16 years, he took the entrance examination, which he passed brilliantly. From then on his life was always linked with the University of Moscow. During his student days, under the influence of Kurosh, Fomin began to work on abstract algebra. His first scientific paper [ 1 ] , published in 1937, belongs to this field of mathematics. It concerned the clarification of conditions under which an Abelian group containing elements of both finite and infinite order splits into the direct sum of its periodic subgroup and a torsion-free group.