Pavel Alexandrov( Soviet mathematician who specializes in topology)
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Biography Pavel Alexandrov
Pavel Alexandrov was born on Nov. 7, 1896 in the town Bogorodsk (located near Moscow, also known as Noginsk).
A year after the birth of Paul, Alexandrov moved to Smolensk. There his father worked as a senior doctor in the city Zemstvo hospital, and he even developed a surgical operation called "Operation Aleksandrov-Wertheim".
Pavel Alexandrov in childhood studied French and German. Somewhat later (while in the U.S.), he learned more and the English Language.
In the spring of 1909 Pavel Alexandrov entered the fourth grade private school and. Yevnevich. A mathematician is conducted. Eygers, that he managed to interest Alexandrov geometry.
In 1913 Pavel joined the Mathematics Department of Moscow University.
The spring of 1915 Aleksandrov solved the problem of power Borel sets. These results he reported at the meeting of Mathematical Society October 13, 1915.
In the summer of 1915 he was engaged in the capacity of Borel sets and A-operations.
In the period from May 1922 to August 1924 Pavel wrote a major work on general topology.
In August 1925 Alexander began the construction of homology theory of compact.
In the spring of 1928 came the work of Pavel Sergeyevich "Gestalt und Lage" ( "The shape and position).
In early 1930 Aleksandrov worked homological dimension theory.
In 1930-1931 Pavel Alexandrov practiced in America.
Winter 1946-1947 period Pavel Alexandrov wrote a paper "On the duality theorem of non-closed sets".
The main theme of work is Alexandroff topology on which he had written over 200 papers, of which only a few were written in collaboration.
Aleksandrov made many journeys: on the Volga, the Caucasus, in Goettingen, in Paris, in the U.S.. Some of them - with his friend Academician Andrei Nikolaevich Kolmogorov.
Aleksandrov made a great contribution to the development of topology and other areas of mathematics, he was awarded many medals, prizes and the title of Hero of Socialist Labor.
Pavel Alexandrov died in 1982.