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Reference.org
Variational analysis
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<p>In <a href="/facts/Mathematics/pxTouaz4">mathematics</a>, variational analysis is the combination and extension of methods from <a href="/facts/Convex_optimization/7D6U4MTN">convex optimization</a> and the classical <a href="/facts/Calculus_of_variations/Ya5Lsma3">calculus of variations</a> to a more general theory. This includes the more general problems of <a href="/facts/Optimization_theory/oRn8Iv5I">optimization theory</a>, including topics in <a href="/facts/Set-valued_analysis/WH5ua6BL">set-valued analysis</a>, e.g. <a href="/facts/Generalized_derivative/yfaJ4mUp">generalized derivatives</a>. </p><p>In the <a href="/facts/Mathematics_Subject_Classification/7xeTuuuk">Mathematics Subject Classification</a> scheme (MSC2010), the field of "Set-valued and variational analysis" is coded by "49J53". </p>