## Mathematics Subject Classification – MSC2010

General reference works (handbooks, dictionaries, bibliographies, etc.) 18

Instructional exposition (textbooks, tutorial papers, etc.) 388

Research exposition (monographs, survey articles) 876

Explicit machine computation and programs (not the theory of computation or programming) 129

Topology of $E^n$, $n$-manifolds ($4<n<\infty$) 1107

Differential topology [For foundational questions of differentiable manifolds, see 58Axx; for infinite-dimensional manifolds, see 58Bxx] 19595

Specialized structures on manifolds (spin manifolds, framed manifolds, etc.) 821