55-XX Algebraic topology

• 55-00 General reference works (handbooks, dictionaries, bibliographies, etc.)
• 55-01 Instructional exposition (textbooks, tutorial papers, etc.)
• 55-02 Research exposition (monographs, survey articles)
• 55-03 Historical (must be assigned at least one classification number from 01-XX)
• 55-04 Explicit machine computation and programs (not the theory of computation or programming)
• 55-06 Proceedings, conferences, collections, etc.
• 55Mxx Classical topics, {For the topology of Euclidean spaces and manifolds, see {57Nxx} {57Nxx}}
• 55Nxx Homology and cohomology theories, see also {57Txx}
• 55Pxx Homotopy theory, {For simple homotopy type, see 57Q10}
• 55Qxx Homotopy groups
• 55Rxx Fiber spaces and bundles, see also {18F15, 32Lxx, 46M20, { 57Rxx} {57R20, 57R22, 57R25}}
• 55Sxx Operations and obstructions
• 55Txx Spectral sequences, see also {18G40, 55R20}
• 55Uxx Applied homological algebra and category theory, see Also { 18Gxx}