## Mathematical Subject Classification – MSC2010

General reference works (handbooks, dictionaries, bibliographies, etc.) 53

Instructional exposition (textbooks, tutorial papers, etc.) 893

Research exposition (monographs, survey articles) 2314

Explicit machine computation and programs (not the theory of computation or programming) 603

Transform methods (e.g. integral transforms) 2358

Laplacian operator, reduced wave equation (Helmholtz equation), Poisson equation [See also 31Axx, 31Bxx] 12236

Equations and systems of special type (mixed, composite, etc.) 3859

Miscellaneous topics [For equations on manifolds, see 58Jxx; for manifolds of solutions, see 58Bxx; for stochastic PDE, see also 60H15] 31556

Partial differential equations on graphs and networks (ramified or polygonal spaces) 134

Partial differential equations on infinite-dimensional (e.g. function) spaces (= PDE in infinitely many variables) [See also 46Gxx, 58D25] 536