Listar Artículos (Álgebra) por agencia financiadora "Ministerio de Educación y Ciencia (MEC). España"
Mostrando ítems 1-20 de 38
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Abelian varieties over number fields, tame ramification and big Galois image
(International Press, 2013)Given a natural number n ≥ 1 and a number field K, we show the existence of an integer ℓ0 such that for any prime number ...
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Bi-orderings on pure braided Thompson's groups
(2008-03)In this paper it is proved that the pure braided Thompson’s group BF admits a bi-order, analog to the bi-order of the pure braid groups.
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Coefficient fields and scalar extension in positive characteristic
(Elsevier, 2005-03-15)Let k be a perfect field of positive characteristic, k(t)per the perfect closure of k(t) and A = k[[X1, . . . , Xn]]. We ...
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Equimultiple locus of embedded algebroid surfaces and blowing-up in arbitrary characteristic
(Chinese Academy of Sciences, 2009-12)This paper extends previous results of the authors, concerning the behaviour of the equimultiple locus of algebroid surfaces under blowing–up, to arbitrary characteristic.
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Estimates for singular multiplicative character sums
(Duke University Press, 2005)We give some estimates for multiplicative character sums on quasiprojective varieties over finite fields depending on the ...
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Formal groups, supersingular abelian varieties and tame ramification
(Elsevier, 2011-05-15)Let us consider an abelian variety defined over Qℓ with good supersingular reduction. In this paper we give explicit ...
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Gevrey solutions of the irregular hypergeometric system associated with an affine monomial curve
(American Mathematical Society, 2011)We describe the Gevrey series solutions at singular points of the irregular hypergeometric system (GKZ system) associated ...
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Hasse-Schmidt derivations, divided powers and differential smoothness
(Association des Annales de l'Institut Fourier, 2009)Let k be a commutative ring, A a commutative k-algebra and D the filtered ring of k-linear differential operators of A. ...
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Irregular hypergeometric D-modules
(E, 2010-08-01)We study the irregularity of hypergeometric D-modules MA(β) via the explicit construction of Gevrey series solutions along ...
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Le théorème du symbole total d’un opérateur différentiel p-adique
(Consejo Superior de Investigaciones Científicas, 2010)Let X † be a smooth †-scheme (in the sense of Meredith) over a complete discrete valuation ring (V,m) of unequal ...
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Localization at hyperplane arrangements: combinatorics and D-modules
(Elsevier, 2007-10-15)We describe an algorithm deciding if the annihilating ideal of the meromorphic function 1 f , where f = 0 defines an ...
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Locally quasi-homogeneous free divisors are Koszul free
(MAIK Nauka/Interperiodica, 2002)Let X be a complex analytic manifold and D ⊂ X be a free divisor. If D is locally quasi-homogeneous, then the logarithmic ...
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Logarithmic cohomology of the complement of a plane curve
(Springer, 2002-03)Let D, x be a plane curve germ. We prove that the complex Ω•(log D)x computes the cohomology of the complement of D, x ...
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Maltsiniotis's first conjecture for K1
(Duke University Press, 2008)We show that K1(E) of an exact category E agrees with K1(DE) of the associated triangulated derivator DE. More generally ...
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Milne's volume function and vector symmetric polynomials
(Elsevier, 2009-05)The number of real roots of a system of polynomial equations fitting inside a given box can be counted using a vector ...
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Motivic Poincaré series, toric singularities and logarithmic Jacobian ideals
(American Mathematical Society, 2012)The geometric motivic Poincaré series of a variety, which was introduced by Denef and Loeser, takes into account the classes ...
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On the cycling operation in braid groups
(Elsevier, 2008-09-06)The cycling operation is a special kind of conjugation that can be applied to elements in Artin’s braid groups, in order ...
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On the functoriality of cohomology of categories
(Elsevier, 2006-03)In this paper we show that the Baues-Wirsching complex used to define cohomology of categories is a 2-functor from a certain ...
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On the logarithmic comparison theorem for integrable logarithmic connections
(London Mathematical Society, 2009)Let X be a complex analytic manifold, D ⊂ X a free divisor with jacobian ideal of linear type (e.g. a locally quasi-homogeneous ...
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On the modules of m-integrable derivations in non-zero characteristic
(Elsevier, 2012-03-20)Let k be a commutative ring and A a commutative k-algebra. Given a positive integer m, or m = ∞, we say that a k-linear ...