55Nxx Homology and cohomology theories

55N05  Cech types
55N07  Steenrod-Sitnikov homologies
55N10  Singular theory
55N15  $K$-theory, See also {19Lxx}, {For algebraic $K$-theory,
               See 18F25, 19-XX}
55N20  Generalized (extraordinary) homology and cohomology
               theories
55N22  Bordism and cobordism theories, formal group laws, See
               also {14L05, 19L41, 57R75, 57R77, 57R85, 57R90}
55N25  Homology with local coefficients, equivariant cohomology
55N30  Sheaf cohomology, See also {18F20, 32C35, 32L10}
55N33  Intersection homology and cohomology
55N35  Other homology theories
55N40  Axioms for homology theory and uniqueness theorems
55N45  Products and intersections
55N91  Equivariant homology and cohomology, See also {19L47}
55N99  None of the above but in this section