= Sergei Sobolev
{wiki=Sergei_Sobolev}
Sergei Sobolev was a prominent Soviet mathematician best known for his contributions to functional analysis and differential equations. He is particularly noted for the development of Sobolev spaces, which are pivotal in the study of partial differential equations and the theory of weak solutions. Sobolev spaces provide a framework for analyzing functions and their derivatives in a generalized sense, allowing for the treatment of functions that may not be classical differentiable.
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