MAL'TSEV 230 



optical devices, and the theory and practice of producing 

 aspherical surfaces. He invented the catadioptric (meniscus) 

 systems for optical devices, which bear his name. These sys- 

 tems received wide use in a number of fields in science and 

 technology. Maksutov also created optical systems for a num- 

 ber of large unique instruments. 

 Bibliography: 



Anaberration reflecting surfaces and systems and new 



methods of testing them. Works of the State Optical Insti- 

 tute, 1932, 8, #86. 



Shadow Methods of Investigating Optical Systems. 



Leningrad-Moscow: 1934. 



New catadioptric meniscus systems. Works of the State 



Optical Institute, 1944, 16, #124. 



Astronomical Optics. Moscow-Leningrad: 1946. 



Production and Investigation of Astronomical Optics. 



Leningrad-Moscow: 1948. 

 Office: Main Astronomical Observatory of USSR Academy 



of Sciences 

 Leningrad M-140, Pulkovo, USSR 



MAL'TSEV, ANATOLII IVANOVICH (Mathematician) 



A. I. Mal'tsev was born November 14, 1909. In 1931 he 

 graduated from Moscow University. He was on the staff of the 

 Pedagogical Institute Imeni Ivanovo from 1932 and in 1943 be- 

 came professor. In 1942 he started working at the Mathematics 

 Institute of the U.S.S.R. Academy of Sciences. Mal'tsev was 

 elected a Corresponding Member of the U.S.S.R. Academy of 

 Sciences in 1953, and in 1958 an Academician. He was a Deputy 

 of the Supreme Soviet U.S.S.R. (fourth and fifth convocations). 

 In 1946 he received a Stalin Prize, and in 1956 he was an 

 Honored Scientist of the R.S. F.S.R. 



Mal'tsev is a specialist in algebra, related questions of 

 mathematics logic, and theories of continuous groups. He has 

 published results in the theory of abstract groups, rings, and 

 general algebraic systems. 

 Bibliography: 



Untersuchungen aus dem Gebiete der mathematischen Logik. 



Mat. Sbornik, New Series, 1936, 1, (43), #3, 323-36. 



On the inclusion of associative systems in groups. Mat. 



Sbornik, 1939, 6 (48), #2, 331-36; 1948, 8^ (50), #2, 251-53. 



On one general method of derivation of local theorems of 



group theory. Scientific Research Papers of the Ivanovo 



