= Lazar Lyusternik
{wiki=Lazar_Lyusternik}
Lazar Lyusternik (sometimes spelled Lyusternik) was a prominent Soviet mathematician known for his work in various areas of mathematics, particularly in topology and functional analysis. He is perhaps best known for his contributions to the field of variational methods and nonsmooth analysis, as well as for the Lyusternik-Schnirelmann theory in topology, which relates to critical points of functional and their applications to geometry and algebra.
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