## Mathematics Subject Classification – MSC2010

General reference works (handbooks, dictionaries, bibliographies, etc.) 17

Instructional exposition (textbooks, tutorial papers, etc.) 383

Research exposition (monographs, survey articles) 868

Explicit machine computation and programs (not the theory of computation or programming) 128

Topology of $E^n$, $n$-manifolds ($4<n<\infty$) 1102

Differential topology [For foundational questions of differentiable manifolds, see 58Axx; for infinite-dimensional manifolds, see 58Bxx] 19402

Specialized structures on manifolds (spin manifolds, framed manifolds, etc.) 817