geometry, the problem of resolution of singularities asks whether every algebraic variety V has a resolution, which is a non-singular variety W with a proper...
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Rational mapping (section Resolution of singularities)
One of the canonical examples of a birational map is the resolution of singularities. Over a field of characteristic 0, every singular variety X...
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Excellent ring (section Resolution of singularities)
problem of resolution of singularities can be solved; Hironaka (1964) showed this in characteristic 0, but the positive characteristic case is (as of 2024)...
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Heisuke Hironaka (category Members of the French Academy of Sciences)
discussed cutting-edge research developments including the resolution of singularities problem for which Hironaka later received the Fields Medal. Hironaka...
17 KB (1,513 words) - 22:04, 5 April 2025
Birational geometry (category Pages that use a deprecated format of the math tags)
convenient setting. Much deeper is Hironaka's 1964 theorem on resolution of singularities: over a field of characteristic 0 (such as the complex numbers), every...
20 KB (2,684 words) - 07:21, 17 April 2025
Toric variety (section Resolution of singularities)
variety has a resolution of singularities given by another toric variety, which can be constructed by subdividing the maximal cones of its associated...
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representation theory, a symplectic resolution is a morphism that combines symplectic geometry and resolution of singularities. Let π : Y → X {\displaystyle...
3 KB (356 words) - 08:10, 21 February 2025
Oscar Zariski (category Members of the United States National Academy of Sciences)
Oscar (1972), Collected papers. Vol. I: Foundations of algebraic geometry and resolution of singularities, Cambridge, Massachusetts-London: MIT Press,...
16 KB (1,428 words) - 15:07, 15 May 2025
Dan (2017). "Resolution of singularities of complex algebraic varieties and their families". Proceedings of the International Congress of Mathematicians...
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Blowing up (redirect from Blow-up of a subvariety)
important way of constructing new spaces. For instance, most procedures for resolution of singularities proceed by blowing up singularities until they become...
23 KB (4,260 words) - 00:10, 3 March 2025
Normal scheme (redirect from Normalization of an algebraic variety)
singularities. Normalization is not usually used for resolution of singularities for schemes of higher dimension. To define the normalization, first suppose...
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acquire singular points on the hyperplane at infinity, when its closure in projective space is taken. Resolution says that such singularities can be handled...
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of a variety is nonsingular in some sense, so is a sort of rather weak resolution of singularities. This does not solve the problem of resolution of singularities...
6 KB (813 words) - 22:26, 29 April 2025
Bott–Samelson resolution of a Schubert variety is a resolution of singularities. It was introduced by Bott & Samelson (1958) in the context of compact Lie...
4 KB (603 words) - 17:31, 11 April 2020
considerably down to about 10 or 20 pages. 1966 Abyhankar's proof of resolution of singularities for 3-folds in characteristic greater than 6 covered about 500...
12 KB (1,557 words) - 22:55, 28 March 2025
surfaces, rational singularities were defined by (Artin 1966). Alternately, one can say that X {\displaystyle X} has rational singularities if and only if...
3 KB (387 words) - 17:30, 18 December 2022
Standard resolution, the bar construction of resolutions in homological algebra Resolution of singularities in algebraic geometry Resolution (audio),...
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has canonical singularities (for example, rational Gorenstein singularities), there is a variety Y with Q-factorial terminal singularities and a birational...
3 KB (386 words) - 16:20, 14 April 2020
János Kollár (category Members of the Hungarian Academy of Sciences)
Abramovich, Dan. "Review: Resolution of singularities by Steven Dale Cutkovsky and Lectures on resolution of singularities by János Kollár" (PDF). Bull...
9 KB (818 words) - 03:22, 4 February 2025
Beppo Levi (category Academic staff of the University of Turin)
studied singularities on algebraic curves and surfaces. In particular, he supplied a proof (questioned by some) that a procedure for resolution of singularities...
10 KB (833 words) - 16:16, 22 June 2024
Lojasiewicz, Triangulation of semi-analytic sets, Ann. Scu. Norm. di Pisa, 18 (1964), 449–474. Heisuke Hironaka, Resolution of singularities of an algebraic variety...
26 KB (3,217 words) - 06:11, 27 January 2025
rational singularities A variety X over a field of characteristic zero has rational singularities if there is a resolution of singularities f : X ′ →...
82 KB (12,496 words) - 00:02, 12 April 2025
the tangent cone is not singular outside its vertex. Milnor map Resolution of singularities Singular point of a curve Singularity theory Smooth scheme Zariski...
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mathematics, canonical singularities appear as singularities of the canonical model of a projective variety, and terminal singularities are special cases that...
5 KB (649 words) - 03:13, 12 December 2024
Local uniformization (category Singularity theory)
of resolution of singularities, stating that a variety can be desingularized near any valuation, or in other words that the Zariski–Riemann space of the...
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Fields Medal (redirect from List of Fields medalists)
from the original on 22 March 2019. Retrieved 7 April 2019. "Memorial Resolution – Paul Cohen (1934–2007)" (PDF). Stanford Historical Society. 2011. Archived...
90 KB (4,942 words) - 13:59, 29 April 2025
a Dynkin diagram of A-D-E singularity type. They are the canonical singularities (or, equivalently, rational Gorenstein singularities) in dimension 2....
5 KB (578 words) - 22:33, 20 March 2023
isomorphism. Blowing up Resolution of singularities Nobile, A. (1975), "Some properties of the Nash blowing-up", Pacific Journal of Mathematics, 60 (1):...
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Intersection homology (redirect from Small resolution)
resolution of singularities f : X → Y {\displaystyle f:X\to Y} of a complex variety Y is called a small resolution if for every r > 0, the space of points...
15 KB (2,761 words) - 16:29, 19 March 2025
Masaki Kashiwara (category Members of the French Academy of Sciences)
proves the rationality of the roots of b-functions (Bernstein–Sato polynomials), using D-module theory and resolution of singularities. Kashiwara's 1973 paper...
11 KB (989 words) - 19:17, 27 April 2025