## Mathematics Subject Classification – MSC2010

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

Instructional exposition (textbooks, tutorial papers, etc.) 387

Research exposition (monographs, survey articles) 875

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

Topology of $E^n$, $n$-manifolds ($4<n<\infty$) 1106

Differential topology [For foundational questions of differentiable manifolds, see 58Axx; for infinite-dimensional manifolds, see 58Bxx] 19534

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