D

• Duality theories‎ (4 C, 69 P)

H

• Homology theory‎ (2 C, 50 P)
• Homotopical algebra‎ (13 P)

K

• K-theory‎ (1 C, 36 P)

S

• Sheaf theory‎ (2 C, 57 P)
• Simplicial sets‎ (29 P)
• Spectral sequences‎ (20 P)

• Homological algebra
• List of homological algebra topics
• Semiorthogonal decomposition

A

• AB5 category
• Abelian 2-group
• Abelian category
• Acyclic model
• Acyclic object
• Adams resolution
• Affine representation
• Amitsur complex

B

• Banach algebra cohomology
• Bass number
• Bockstein homomorphism

C

• Cartan pair
• Cartan–Eilenberg resolution
• Chain complex
• Chiral homology
• Cohomological dimension
• Cohomology of algebras
• Commutative diagram
• Crystalline cohomology
• Cyclic homology

D

• De Rham–Weil theorem
• Deligne cohomology
• Delta-functor
• Derivator
• Derived category
• Derived functor
• Differential graded algebra
• Differential graded category
• Diffiety
• Direct limit of groups
• Double complex
• Dual Steenrod algebra

E

• Eilenberg–Ganea theorem
• Eilenberg–Maclane spectrum
• Eilenberg–Zilber theorem
• Étale cohomology
• Exact category
• Exact functor
• Exact sequence
• Exalcomm
• Ext functor

F

• Factorization homology
• Filtered algebra
• Finiteness properties of groups
• Five lemma
• Flat module

G

• Galois cohomology
• Gelfand–Fuks cohomology
• Gerbe
• Giraud subcategory
• Global dimension
• Gluing axiom
• Godement resolution
• Gonality of an algebraic curve
• Grade (ring theory)
• Grothendieck category
• Grothendieck group
• Grothendieck's Tôhoku paper
• Group cohomology

H

• Hilbert–Poincaré series
• Hilbert's syzygy theorem
• Hochschild homology
• Hodge structure
• Homological conjectures in commutative algebra
• Homological dimension
• Homotopy associative algebra
• Homotopy category of chain complexes
• Horseshoe lemma
• Hyperhomology

I

• Inflation-restriction exact sequence
• Injective module
• Injective sheaf
• Invariant basis number

K

• Koszul complex
• Koszul–Tate resolution
• Künneth theorem

L

• Lie algebra cohomology
• Linear relation
• Localizing subcategory

M

• Mapping cone (homological algebra)
• Matrix factorization (algebra)
• Mixed Hodge module
• Mixed Hodge structure
• Monad (homological algebra)
• Monsky–Washnitzer cohomology
• Motive (algebraic geometry)

N

• Nine lemma

P

• Persistence module
• Perverse sheaf
• Principal ideal theorem
• Projective cover
• Projective module
• Projective object
• Projective representation

Q

• Quasi-isomorphism

R

• Resolution (algebra)

S

• Schanuel's lemma
• Schur multiplier
• Secondary calculus and cohomological physics
• Section (category theory)
• Severi–Brauer variety
• Shapiro's lemma
• Sheaf cohomology
• Short five lemma
• Six operations
• Snake lemma
• Splitting lemma
• Standard complex

T

• T-structure
• Tate cohomology group
• Tensor product of modules
• Topological half-exact functor
• Topological Hochschild homology
• Tor functor
• Torsion (algebra)
• Transgression map
• Triangulated category

U

• Universal coefficient theorem

V

• Verdier duality

W

• Weak dimension
• Weak equivalence (homotopy theory)
• Weil conjectures

Z

• Zig-zag lemma