more specifically in homological algebra, a resolution (or left resolution; dually a coresolution or right resolution) is an exact sequence of modules...
13 KB (2,077 words) - 09:43, 26 December 2024
Homological algebra is the branch of mathematics that studies homology in a general algebraic setting. It is a relatively young discipline, whose origins...
27 KB (3,859 words) - 21:03, 26 January 2025
Year's Day Dispute resolution, the settlement of a disagreement Resolution (algebra), an exact sequence in homological algebra Resolution (logic), a rule...
7 KB (873 words) - 06:35, 4 May 2025
In algebraic geometry, the problem of resolution of singularities asks whether every algebraic variety V has a resolution, which is a non-singular variety...
43 KB (5,480 words) - 22:18, 15 March 2025
lemma Extension (algebra) Central extension Splitting lemma Projective module Injective module Projective resolution Injective resolution Koszul complex...
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In homological algebra, a branch of mathematics, a matrix factorization is a tool used to study infinitely long resolutions, generally over commutative...
4 KB (610 words) - 21:47, 17 July 2024
Bar complex (redirect from Standard resolution)
the bar resolution, bar construction, standard resolution, or standard complex, is a way of constructing resolutions in homological algebra. It was first...
6 KB (1,015 words) - 07:02, 26 May 2025
François Viète (redirect from New algebra)
Vieta, was a French mathematician whose work on new algebra was an important step towards modern algebra, due to his innovative use of letters as parameters...
48 KB (6,288 words) - 15:48, 8 May 2025
example of a Koszul algebra is a polynomial ring over a field, for which the Koszul complex is the minimal graded free resolution of the ground field...
3 KB (383 words) - 03:06, 13 May 2024
Algebraic geometry is a branch of mathematics which uses abstract algebraic techniques, mainly from commutative algebra, to solve geometrical problems...
62 KB (7,498 words) - 11:10, 27 May 2025
Projective module (category Homological algebra)
In mathematics, particularly in algebra, the class of projective modules enlarges the class of free modules (that is, modules with basis vectors) over...
23 KB (3,081 words) - 01:20, 19 May 2025
Flat module (redirect from Faithfully flat algebra)
In algebra, flat modules include free modules, projective modules, and, over a principal ideal domain, torsion-free modules. Formally, a module M over...
30 KB (4,590 words) - 03:05, 9 August 2024
Springer resolution is a resolution of the variety of nilpotent elements in a semisimple Lie algebra, or the unipotent elements of a reductive algebraic group...
4 KB (481 words) - 08:44, 1 December 2021
In homological algebra, the Cartan–Eilenberg resolution is in a sense, a resolution of a chain complex. It can be used to construct hyper-derived functors...
3 KB (477 words) - 00:39, 16 December 2023
glossary of commutative algebra. See also list of algebraic geometry topics, glossary of classical algebraic geometry, glossary of algebraic geometry, glossary...
66 KB (9,772 words) - 22:19, 27 May 2025
Homogeneous coordinate ring (category Algebraic varieties)
In algebraic geometry, the homogeneous coordinate ring is a certain commutative ring assigned to any projective variety. If V is an algebraic variety given...
9 KB (1,275 words) - 06:23, 6 March 2025
Let π : Y → X {\displaystyle \pi :Y\to X} be a morphism between complex algebraic varieties, where Y {\displaystyle Y} is smooth and carries a symplectic...
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predicts that the gonality of the algebraic curve C can be calculated by homological algebra means, from a minimal resolution of an invertible sheaf of high...
3 KB (408 words) - 18:24, 9 September 2024
mathematics, real algebraic geometry is the sub-branch of algebraic geometry studying real algebraic sets, i.e. real-number solutions to algebraic equations with...
26 KB (3,217 words) - 06:11, 27 January 2025
projective resolution of singularities X ′ → X {\displaystyle X'\to X} . Despite Chow's theorem, not every complex analytic variety is a complex algebraic variety...
2 KB (205 words) - 15:31, 26 May 2025
Tor functor (category Homological algebra)
homological algebra, in which ideas from algebraic topology are used to construct invariants of algebraic structures. The homology of groups, Lie algebras, and...
13 KB (2,068 words) - 17:02, 2 March 2025
Consensus theorem (redirect from Consensus (boolean algebra))
In Boolean algebra, the consensus theorem or rule of consensus is the identity: x y ∨ x ¯ z ∨ y z = x y ∨ x ¯ z {\displaystyle xy\vee {\bar {x}}z\vee...
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In algebraic geometry, the Bott–Samelson resolution of a Schubert variety is a resolution of singularities. It was introduced by Bott & Samelson (1958)...
4 KB (603 words) - 17:31, 11 April 2020
The Godement resolution of a sheaf is a construction in homological algebra that allows one to view global, cohomological information about the sheaf in...
4 KB (577 words) - 10:57, 7 January 2025
Normal scheme (redirect from Normal algebraic variety)
normalization lemma Resolution of singularities Eisenbud, D. Commutative Algebra (1995). Springer, Berlin. Theorem 11.5 Eisenbud, D. Commutative Algebra (1995). Springer...
7 KB (1,087 words) - 19:07, 14 June 2024
In algebraic geometry, a crepant resolution of a singularity is a resolution that does not affect the canonical class of the manifold. The term "crepant"...
3 KB (386 words) - 16:20, 14 April 2020
Excellent ring (category Commutative algebra)
In commutative algebra, a quasi-excellent ring is a Noetherian commutative ring that behaves well with respect to the operation of completion, and is...
11 KB (1,465 words) - 23:20, 26 March 2025
Injective sheaf (redirect from Flasque resolution)
mathematics, injective sheaves of abelian groups are used to construct the resolutions needed to define sheaf cohomology (and other derived functors, such as...
7 KB (1,059 words) - 05:23, 15 April 2025
field of an algebraic variety Ample line bundle Ample vector bundle Linear system of divisors Birational geometry Blowing up Resolution of singularities...
7 KB (600 words) - 19:55, 10 January 2024
homological conjectures have been a focus of research activity in commutative algebra since the early 1960s. They concern a number of interrelated (sometimes...
6 KB (1,050 words) - 23:01, 7 May 2025