Algebraic number theory: local and $p$-adic fields Algebras of operators on Banach spaces and other topological linear spaces Analyse fonctionnelle Analyse p-adique Distribution of values, Nevanlinna theory Entire and meromorphic functions, and related topics Field theory and polynomials Functional analysis Functional analysis over fields other than $ Functions of a complex variable Generalized function theory Linear spaces and algebras of operators Measures, integration, derivative, holomorphy (all involving infinite-dimensional spaces) Miscellaneous topics Non-Archimedean analysis Non-Archimedean analysis (should also be assigned at least one other classification number from Section 32 describing the type of problem) Non-Archimedean function theory Non-Archimedean valued fields Number theory Operator theory Order, lattices, ordered algebraic structures Ordered semigroups and monoids Ordered structures Other (nonclassical) types of functional analysis Other analytic theory (analogues of beta and gamma functions, $p$-adic integration, etc.) Real functions Several complex variables and analytic spaces Topological fields Vector-valued measures and integration p-adic analysis