Professor Dyuis D. Ivlev. Dedication to 85th Birtday

Dyuis D. Ivlev (1930–2013) is an outstanding scientist in the fields of Continuum Mechanics (theory of Perfect Plasticity and Fracture) and Applied Mathematics. He has much contributed to the mathematical theory of plasticity, especially to study of hyperbolic three-dimensional problems of the perfect plasticity.
Dyuis D. Ivlev was born in Chuvashia Republick, Russia, on September 6, 1930. In 1948 he left Chuvashia and after passing examinations entered Moscow State University. He is a Mechanical Engineering graduate (1953) of Moscow State University. In 1953 he continued his research work as a post graduate student of the same university. In 1956 he received PhD in Solid Mechanics from Moscow State University. The title of his PhD dissertation work is Approximate Solution of Elasti-Plastic Problems by the small parameter method. Three years later he was awarded DSc (Phys. & Math.) Degree from Moscow State University for his dissertation study Three-Dimensional Problem of the Theory of Perfect Plasticity. Since 1959 he has been working as head of the Department of Elasticity and Plasticity of Voronezh State University, then (1966–1970) as Prof. of Bauman State Technical University and (1971–1982) as head of the Department of Higher Mathematics of Russian Polytechnical University. In 1982 he returned to Chuvashia working in Chuvash State University (until 1993) and Chuvash State Pedagogical University (1993–2013) as head of Department of Mathematical Analysis.
Prof. Dyuis D. Ivlev has been a member of National Committee on Theoretical and Applied Mechanics, Scientific Council on Problems of Solid Mechanics, Mathematics and Mechanics Expert Council of the Higher Attestation Committee. He is the author of several books on theory of perfect plasticity and its applications and nearly 250 papers on the subject.