geometry, a linear system of divisors is an algebraic generalization of the geometric notion of a family of curves; the dimension of the linear system corresponds...
17 KB (2,910 words) - 01:10, 24 January 2025
divisors are a generalization of codimension-1 subvarieties of algebraic varieties. Two different generalizations are in common use, Cartier divisors...
41 KB (6,612 words) - 00:21, 12 April 2025
Brill–Noether theory (redirect from Special linear system)
Alexander von Brill and Max Noether (1874), is the study of special divisors, certain divisors on a curve C that determine more compatible functions than...
7 KB (907 words) - 05:48, 28 November 2023
special divisors is a result of William K. Clifford (1878) on algebraic curves, showing the constraints on special linear systems on a curve C. A divisor on...
6 KB (734 words) - 06:43, 5 December 2024
generalization of a sequence Net, a linear system of divisors of dimension 2 Net (polyhedron), an arrangement of polygons that can be folded up to form...
1 KB (217 words) - 06:39, 16 December 2024
broadest of the "Bertini theorems" applying to a linear system of divisors; simplest because there is no restriction on the characteristic of the underlying...
6 KB (858 words) - 02:25, 3 March 2025
separation of variables in the Hamilton–Jacobi equation Web, a linear system of divisors of dimension 3 Web Entertainment, a record label Web (album), a...
4 KB (534 words) - 06:10, 19 April 2025
Diophantine equation (redirect from System of linear Diophantine equations)
reduced row echelon form to solve a system of linear equations over a field. Using matrix notation every system of linear Diophantine equations may be written...
33 KB (4,809 words) - 19:16, 28 March 2025
divisors and line bundles, the first twisting sheaf O ( 1 ) {\displaystyle {\mathcal {O}}(1)} is equivalent to hyperplane divisors. Since the ring of...
9 KB (1,400 words) - 20:52, 2 March 2025
Coherent duality (category Topological methods of algebraic geometry)
adjoint linear system of a linear system of divisors in classical algebraic geometry. This was re-expressed, with the advent of sheaf theory, in a way that...
12 KB (1,897 words) - 23:12, 1 October 2024
Function field of an algebraic variety Ample line bundle Ample vector bundle Linear system of divisors Birational geometry Blowing up Resolution of singularities...
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Projective variety (section Duality and linear system)
{O}}(D)\end{cases}}} from the group of (Weil) divisors modulo principal divisors to the group of isomorphism classes of line bundles. A divisor corresponding to ωX is...
45 KB (7,499 words) - 13:00, 31 March 2025
of the interpretation of J as the linear equivalence classes of divisors on C of degree 0. That is, Q on C maps to the class of Q − P. Then since J is...
4 KB (492 words) - 05:00, 21 May 2023
algebraic geometry, an algebraic generalization is given by the notion of a linear system of divisors. Weisstein, Eric W. "Family of Curves". MathWorld....
2 KB (246 words) - 13:08, 17 February 2025
defined n-th plurigenus of V. The pluricanonical divisor K n {\displaystyle K^{n}} , via the corresponding linear system of divisors, gives a map to projective...
4 KB (464 words) - 18:26, 21 May 2023
Homogeneous coordinate ring (redirect from Linearly normal)
dimensions. Another equivalent condition is in terms of the linear system of divisors on V cut out by the dual of the tautological line bundle on projective space...
9 KB (1,275 words) - 06:23, 6 March 2025
condition, so determined a quadric in P5. However the linear system of divisors consisting of all such quadrics is not without a base locus. In fact...
9 KB (1,137 words) - 20:03, 11 March 2025
of their intersection is the product of their degrees: deg Y ∩ Z = (deg Y)(deg Z). For a more sophisticated approach, the linear system of divisors defining...
4 KB (533 words) - 18:34, 1 December 2024
of the points are collinear and no seven points lie on a conic. The Cayley–Bacharach theorem can be deduced from this fact. Linear system of divisors...
11 KB (1,492 words) - 07:05, 29 March 2025
1. A homaloidal linear system of divisors is a linear system of grade 1, such as the image of the linear system of hyperplanes of projective space under...
81 KB (11,133 words) - 03:00, 26 December 2024
} Computing all divisors of the two numbers in this way is usually not efficient, especially for large numbers that have many divisors. Much more efficient...
36 KB (4,743 words) - 09:06, 10 April 2025
sophisticated theory of handling a linear system of divisors was developed (in effect, a line bundle theory for hyperplane sections of putative embeddings...
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Pencil (geometry) (redirect from Pencil of curves)
pencil is the special case of a linear system of divisors in which the parameter space is a projective line. Typical pencils of curves in the projective...
19 KB (2,937 words) - 03:41, 11 January 2025
Lefschetz pencil (category Geometry of divisors)
the algebraic topology of an algebraic variety V {\displaystyle V} . A pencil is a particular kind of linear system of divisors on V {\displaystyle V}...
4 KB (491 words) - 07:54, 18 October 2024
linear algebra, because it provides faster computation than with the usual numeral systems, even when the time for converting between numeral systems...
14 KB (1,605 words) - 12:51, 24 April 2025
In algebra, linear equations and systems of linear equations over a field are widely studied. "Over a field" means that the coefficients of the equations...
10 KB (1,439 words) - 00:13, 20 January 2025
Euclidean algorithm (redirect from Game of Euclid)
there are two versions of the Euclidean algorithm, one for right divisors and one for left divisors. Choosing the right divisors, the first step in finding...
126 KB (15,349 words) - 16:35, 30 April 2025
Ample line bundle (redirect from Very ample divisor)
class of an R-divisor (an R-linear combination of Cartier divisors) in N 1 ( X ) {\displaystyle N^{1}(X)} , with its topology based on the topology of the...
40 KB (6,874 words) - 00:15, 14 March 2025
Matrix similarity (redirect from Similar (linear algebra))
a permutation of the Jordan blocks Index of nilpotence Elementary divisors, which form a complete set of invariants for similarity of matrices over a...
8 KB (1,081 words) - 06:54, 28 April 2025
qualitative study of dynamical systems, that is, properties that do not change under coordinate changes. Linear dynamical systems and systems that have two...
52 KB (7,094 words) - 19:05, 23 February 2025