Keldysh Institute of Applied Mathematics
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The Keldysh Institute of Applied Mathematics (Russian: Институт прикладной математики им. М.В.Келдыша) of Russian Academy of Sciences is a research institute specializing in computational mathematics.
The institute is located in Moscow, Russia. It is named after Mstislav Keldysh. The institute was created in 1966 when it split from Steklov Institute of Mathematics. Already as the Department of Applied Mathematics of Steklov Institute it had conducted some outstanding research in the field of space exploration: in 1953 it developed the method of ballistic spacecraft descent, that was used on April 12, 1961 for Yuri Gagarin's return to the Earth, and in 1957 Sputnik 1 orbit was calculated there using the computer processing of optical observation data.[1]