## Mathematics Subject Classification – MSC2010

General reference works (handbooks, dictionaries, bibliographies, etc.) 38

Instructional exposition (textbooks, tutorial papers, etc.) 679

Research exposition (monographs, survey articles) 939

Explicit machine computation and programs (not the theory of computation or programming) 111

Optimal solutions belonging to restricted classes (Lipschitz controls, bang-bang controls, etc.) 1205

Variational methods for eigenvalues of operators [See also 47A75] (should also be assigned at least one other classification number in Section 49) 290

Variational principles of physics (should also be assigned at least one other classification number in section 49) 3266