57XX 


Manifolds and cell complexes {For complex manifolds, see 32Qxx} 


5700 
General reference works (handbooks, dictionaries, bibliographies, etc.) 


5701 
Instructional exposition (textbooks, tutorial papers, etc.) 


5702 
Research exposition (monographs, survey articles) 


5703 
Historical (must also be assigned at least one classification number from Section 01) 


5704 
Explicit machine computation and programs (not the theory of computation or programming) 


5706 
Proceedings, conferences, collections, etc. 

57Mxx 

Lowdimensional topology 

57Nxx 

Topological manifolds 

57Pxx 

Generalized manifolds [See also 18F15] 

57Qxx 

PLtopology 

57Rxx 

Differential topology {For foundational questions of differentiable manifolds, see 58Axx; for infinitedimensional manifolds, see 58Bxx} 

57Sxx 

Topological transformation groups [See also 20F34, 22XX, 37XX, 54H15, 58D05] 

57Txx 

Homology and homotopy of topological groups and related structures 