Listar Algebra por fecha de publicación
Mostrando ítems 41-60 de 303
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Artículo
MacMahon symmetric functions, the partition lattice, and young subgroups
(Elsevier, 2001-11)A MacMahon symmetric function is a formal power series in a finite number of alphabets that is invariant under the diagonal ...
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Tesis Doctoral
Métodos efectivos en anillos de operadores diferenciales y en sistemas hipergeométricos
(2002)El Análisis Algebraico, o teoría de D-m&oa cute;dulos, trata el estudio de los sistemas de ecuaciones -- en derivadas ...
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Artículo
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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Artículo
Presentations for the monoids of singular braids on closed surfaces
(Taylor & Francis, 2002)We give presentations, in terms of generators and relations, for the monoids SBn(M) of singular braids on closed surfaces. ...
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Artículo
Gröbner δ-bases and Gröbner bases for differential operators
(Polish Academy of Sciences, Institute of Mathematics, 2002)This paper deals with the notion of Gr¨obner δ-base for some rings of linear differential operators by adapting the works ...
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Artículo
Free divisors and duality for D-modules
(Pleiades, 2002)The relationship between D-modules and free divisors has been studied in a general setting by L. Narváez and F.J. Calderón. ...
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Artículo
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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Artículo
Specializations of MacMahon symmetric functions and the polynomial algebra
(Elsevier, 2002-03-06)A MacMahon symmetric function is a formal power series in a finite number of alphabets that is invariant under the diagonal ...
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Tesis Doctoral
Derivaciones de Hasse-Schmidt, cuerpos de coeficientes y extensión de escalares en característica positiva
(2002-03-08)Una de las diferencias más notables entre el Álgebra de característica positiva y el Álgebra de característica cero radica ...
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Artículo
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.
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Artículo
Constructions in R[x_1, ..., x_n]. Applications to K-Theory
(2002-06-25)A classical result in K-Theory about polynomial rings like the Quillen-Suslin theorem admits an algorithmic approach when ...
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Artículo
Computing the rational torsion of an elliptic curve using Tate normal form
(Elsevier, 2002-09)It is a classical result (apparently due to Tate) that all elliptic curves with a torsion point of order n (4 ≤ n ≤ 10, ...
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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
A combinatorial overview of the Hopf algebra of MacMahon symmetric functions
(Springer, 2002-11)A MacMahon symmetric function is a formal power series in a finite number of alphabets that is invariant under the diagonal ...
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Artículo
Explicit models for perverse sheaves
(European Mathematical Society, 2003)We consider categories of generalized perverse sheaves, with relaxed constructibility conditions, by means of the process ...
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Artículo
Computation of centralizers in braid groups and Garside groups
(Consejo Superior de Investigaciones Científicas, 2003)We give a new method to compute the centralizer of an element in Artin braid groups and, more generally, in Garside groups. ...
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Artículo
Los números de (Euler)-Catalan
(Asociación Matemática Venezolana, 2003) -
Artículo
Minimal resolutions of lattice ideals and integer linear programming
(European Mathematical Society, 2003)A combinatorial description of the minimal free resolution of a lattice ideal allows us to the connection of Integer ...
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Artículo
La labor docente del profesor de matemáticas
(Sociedad Española de Matemática Aplicada, 2003) -
Artículo
Sumando la derivada de la serie geométrica
(Asociación Matemática Venezolana, 2003)