• Thumbnail for Linear system of divisors
    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
  • 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
  • Thumbnail for Diophantine equation
    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...
    7 KB (600 words) - 19:55, 10 January 2024
  • Thumbnail for Projective variety
    {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
  • Thumbnail for Family of curves
    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
  • 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
  • Thumbnail for Cayley–Bacharach theorem
    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...
    12 KB (1,498 words) - 13:47, 6 December 2023
  • Thumbnail for Pencil (geometry)
    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
  • Thumbnail for Euclidean algorithm
    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
  • 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
  • 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
  • Thumbnail for Dynamical system
    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