55N20 Generalized (extraordinary) homology and cohomology theories

55N22 Bordism and cobordism theories, formal group laws [See also <a href="#code:14L05">14L05</a>, <a href="#code:19L41">19L41</a>, <a href="#code:57R75">57R75</a>, <a href="#code:57R77">57R77</a>, <a href="#code:57R85">57R85</a>, <a href="#code:57R90">57R90</a>]

55N25 Homology with local coefficients, equivariant cohomology

55N33 Intersection homology and cohomology

55N40 Axioms for homology theory and uniqueness theorems

55N91 Equivariant homology and cohomology [See also <a href="#code:19L47">19L47</a>]

55N99 None of the above, but in this section

55Pxx Homotopy theory {For simple homotopy type, see <a href="#code:57Q10">57Q10</a>}

55P05 Homotopy extension properties, cofibrations

55P43 Spectra with additional structure ($E_\infty$, $A_\infty$, ring spectra, etc.)

55P48 Loop space machines, operads [See also <a href="#code:18D50">18D50</a>]

55P55 Shape theory [See also <a href="#code:54C56">54C56</a>, <a href="#code:55Q07">55Q07</a>]

55P91 Equivariant homotopy theory [See also <a href="#code:19L47">19L47</a>]

55P92 Relations between equivariant and nonequivariant homotopy theory

55P99 None of the above, but in this section

55Q05 Homotopy groups, general; sets of homotopy classes

55Q15 Whitehead products and generalizations

55Q20 Homotopy groups of wedges, joins, and simple spaces

55Q50 $J$-morphism [See also <a href="#code:19L20">19L20</a>]

55Q70 Homotopy groups of special types [See also <a href="#code:55N05">55N05</a>, <a href="#code:55N07">55N07</a>]

55Q91 Equivariant homotopy groups [See also <a href="#code:19L47">19L47</a>]

55Q99 None of the above, but in this section

55R20 Spectral sequences and homology of fiber spaces [See also <a href="#code:55Txx">55Txx</a>]

55R35 Classifying spaces of groups and $H$-spaces

55R40 Homology of classifying spaces, characteristic classes [See also <a href="#code:57Txx">57Txx</a>, <a href="#code:57R20">57R20</a>]

55R45 Homology and homotopy of $B{\rm O}$ and $B{\rm U}$; Bott periodicity