A. M. Kagan

A. M. Kagan (10 December 1936) is a Russian-born American mathematician and professor of mathematics at the University of Maryland. His subjects of interest are Parameter Estimation; Fisher Information; Characterization Problems; Sufficiency and Exponential Families; and Generalized Linear Models

A. M. Kagan was born Abram Meerovich Kagan on December 10, 1936, in Moscow, Russia. He obtained his M.S. in Mathematics from the University of Tashkent (now National University of Uzbekistan.) He then earned a Ph.D. degree in mathematical statistics from the State University of Saint Petersburg, in 1963. His dissertation was titled A Study on Statistical Theory of Estimation. In 1967, he received his D.Sc. in mathematics. 

From 1965 to 1988, Kagan was a scientist and researcher at the Leningrad Branch of Steklov Mathematical Institute (known by its Russian acronym LOMI), Russian Academy of Sciences. Since April 1988, he has been teaching at the University of Maryland, College Park, Maryland.

Kagan also plays chess as a hobby (played tournaments in the Soviet Union and the United States).