Listar Artículos (Álgebra) por título
Mostrando ítems 166-185 de 260
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On simultaneous arithmetic progressions on elliptic curves
(Taylor & Francis, 2006)In this paper we study elliptic curves which have a number of points whose coordinates are in arithmetic progression. We ...
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On the bracket of integrable derivations
(Elsevier, 2021-05-15)We prove that any multi-variate Hasse–Schmidt derivation can be decomposed in terms of substitution maps and uni-variate ...
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On the centralizer of generic braids
(De Gruyter, 2018-11)We study the centralizer of a braid from the point of view of Garside theory, showing that generically a minimal set of ...
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On the computation of the Apéry set of numerical monoids and affine semigroups
(Springer, 2014-10-01)A simple way of computing the Apéry set of a numerical semigroup (or monoid) with respect to a generator, using Groebner ...
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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 dimension of discrete valuations of k ((X1, ..., Xn))
(Elsevier, 2001-07-01)Let v be a rank-one discrete valuation of the field Kn=k((X1,…,Xn)). We know, after [1], that if n=2 then the dimension ...
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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 local monodromy of AA-hypergeometric functions and some monodromy invariant subspaces
(EMS Press, 2019-04-09)We consider the p-center problem on tree graphs where the customers are modeled as continua subtrees. We address unweighted ...
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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 minimal positive standardizer of a parabolic subgroup of an Artin–Tits group
(Springer, 2018-09-22)The minimal standardizer of a curve system on a punctured disk is the minimal positive braid that transforms it into a ...
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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 ...
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On the number of rational points on curves over finite fields with many automorphisms
(Elsevier, 2013-01)Using Weil descent, we give bounds for the number of rational points on two families of curves over finite fields with a ...
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On the rank of an A-hypergeometric D-module versus the normalized volume of A
(Wiley, 2022-03-06)The rank of an A-hypergeometric D-module MA(β), associated with a full rank (d×n)-matrix A and a vector of parameters β∈Cd, ...
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On the reduced Bernstein-Sato polynomial of Thom-Sebastiani singularities
(Springer Nature, 2023-08-10)Given two holomorphic functions f and g defined in two respective germs of complex analytic manifolds (X, x) and (Y, y), ...
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On the singular braid monoid of an orientable surface
(American Mathematical Society, 2004)In this paper we show that the singular braid monoid of an orientable surface can be embedded in a group. The proof is purely topological, making no use of the monoid presentation.
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On the Sn-module structure of the noncommutative harmonics
(Elsevier, 2008-08)Using the a noncommutative version of Chevalley’s theorem due to Bergeron, Reutenauer, Rosas, and Zabrocki we compute the ...
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On the structure of the centralizer of a braid
(Elsevier, 2004)The mixed braid groups are the subgroups of Artin braid groups whose elements preserve a given partition of the base ...
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On the ubiquity of trivial torsion on elliptic curves
(Springer, 2010-08)The purpose of this paper is to give a down-to-earth proof of the well–known fact that a randomly chosen elliptic curve over the rationals is most likely to have trivial torsion.
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On the unit of a monoidal model category
(Elsevier, 2015-08-15)In this paper we show how to modify cofibrations in a monoidal model category so that the tensor unit becomes cofibrant ...
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Ordering pure braid groups on compact, connected surfaces
(University of California, 2002-04)We prove that the pure braid groups on compact, connected, orientable surfaces are bi-orderable, and that the pure braid groups on compact, connected non-orientable surfaces have generalized torsion, thus they are not bi-orderable.