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55Nxx Homology and cohomology theories [See also 57Txx] {Info & Stats}

  • 55N05 Čech 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]
  • 55N32 Orbifold cohomology
  • 55N33 Intersection homology and cohomology
  • 55N34 Elliptic 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