Listar Artículos (Álgebra) por título
Mostrando ítems 236-255 de 259
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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 ...
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Une condition suffisante pour l'irréductibilité d'une induite parabolique de GL(m,D)
(Association des Annales de l'Institut Fourier, 2013)Dans la théorie des représentations de GLn (et ses formes intérieures) sur un corps local non-archimédien, nous disposons ...
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Unital associahedra
(De Gruyter, 2014-03)We construct a topological cellular operad such that the algebras over its cellular chains are the homotopy unital A∞-algebras of Fukaya-Oh-Ohta-Ono.
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Unramified ℓ-modular representations of GLn(F) and its inner forms
(Oxford University Press, 2014)Let F be a non-Archimedean locally compact field of residue characteristic p and R be an algebraically closed field of ...