Listar Algebra por título
Mostrando ítems 279-298 de 305
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Artículo
The local duality theorem in D-module theory
(Société Mathématique de France, 2004)These notes are devoted to the Local Duality Theorem for D-modules, which asserts that the topological Grothendieck-Verdier ...
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Artículo
The module Dfs for locally quasi-homogeneous free divisors
(Springer, 2002-10)We find explicit free resolutions for the D-modules Dfs and D[s]fs/D[s]f s+1, where f is a reduced equation of a locally ...
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Artículo
The Newton Procedure for several variables
(Elsevier, 2011-07-15)Let us consider an equation of the form P(x, z) = zm + w1(x)zm−1 + · · · + wm−1(x)z + wm(x) = 0, where m>1, n>1, x=(x1⋯xn) ...
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Artículo
The nth root of a braid is unique up to conjugacy
(Mathematical Sciences Publishers, 2003-11-01)We prove a conjecture due to Makanin: if α and β are elements of the Artin braid group Bn such that α k = β k for some nonzero integer k, then α and β are conjugate. The proof involves the Nielsen-Thurston classification of braids.
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Artículo
The regularity of a toric variety
(Elsevier, 2001-03-01)We give a method for computing the degrees of the minimal syzygies of a toric variety by means of combinatorial techniques. ...
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Artículo
The root extraction problem for generic braids
(MDPI, 2019-10)We show that, generically, finding the k-th root of a braid is very fast. More precisely, we provide an algorithm which, ...
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Artículo
The stability of the Kronecker products of Schur functions
(Elsevier, 2011-04-01)In the late 1930’s Murnaghan discovered the existence of a stabilization phenomenon for the Kronecker product of Schur ...
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Artículo
The symmetric action on secondary homotopy groups
(The Belgian Mathematical Society, 2008-11)We show that the symmetric track groups Sym(n), which are extensions of the symmetric groups Sym(n) associated to the second Stiefel-Whitney class, act as crossed modules on the secondary homotopy groups of a pointed space.
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Artículo
Thue equations and torsion groups of elliptic curves
(Elsevier, 2009-02)A new characterization of rational torsion subgroups of elliptic curves is found, for points of order greater than 4, through the existence of solution for systems of Thue equations.
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Artículo
Toda brackets and cup-one squares for ring spectra
(Taylor & Francis, 2009)In this paper we prove the laws of Toda brackets on the homotopy groups of a connective ring spectrum and the laws of the cup-one square in the homotopy groups of a commutative connective ring spectrum.
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Artículo
Torsion homology and cellular approximation
(Mathematical Sciences Publishers, 2019-02-06)We describe the role of the Schur multiplier in the structure of the p-torsion of discrete groups. More concretely, we ...
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Artículo
Torsion of rational elliptic curves over cubic fields
(Rocky Mountain Mathematics Consortium, 2016)Let E be an elliptic curve defined over Q. We study the relationship between the torsion subgroup E(Q)tors and the torsion ...
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Artículo
Torsion of rational elliptic curves over quadratic fields
(Springer, 2014-09)Let E be an elliptic curve defined over Q. We study the relationship between the torsion subgroup E(Q)tors and the torsion subgroup E(K)tors, where K is a quadratic number field.
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Artículo
Torsion of rational elliptic curves over quadratic fields II
(Springer, 2016-03)Let E be an elliptic curve defined over Q and let G=E(Q)_tors be the associated torsion group. In a previous paper, the ...
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Artículo
Transfinite Adams representability
(Elsevier, 2016-04-09)We consider the following problems in a well generated triangulated category T . Let α be a regular cardinal and T α ⊂ T ...
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Tesis Doctoral
Trenzas en superficies cerradas
(2000)En este trabajo se estudian las trenzas en superficies cerradas. En primer lugar, se dan nuevas presentaciones de los ...
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Artículo
Triangulated categories without models
(Springer, 2007-11)We exhibit examples of triangulated categories which are neither the stable category of a Frobenius category nor a full ...
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Artículo
Twisted conjugacy in braid groups
(Springer, 2014)In this note we solve the twisted conjugacy problem for braid groups, i.e. we propose an algorithm which, given two braids ...
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Capítulo de Libro
Two Mayer-Vietoris Spectral Sequences for D-modules
(American Mathematical Society, 2015-03-18)We provide two Mayer-Vietoris-like spectral sequences related to the localization over the complement of a closed subvariety ...
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Artículo
Types modulo ℓ pour les formes intérieures de GLn sur un corps local non archimédien
(London Mathematical Society, 2014-10-04)Let F be a non-Archimedean locally compact field of residue characteristic p, let D be a finitedimensional central division ...