Browsing Artículos (Álgebra) by Issue Date
Now showing items 81-100 of 260
-
Article
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 ...
-
Article
The 1-type of a Waldhausen K-theory spectrum
(Elsevier, 2007-12-01)We give a small functorial algebraic model for the 2-stage Postnikov section of the K-theory spectrum of a Waldhausen category and use our presentation to describe the multiplicative structure with respect to biexact functors.
-
Article
The defining ideals of conjugacy classes of nilpotent matrices and a conjecture of Weyman
(Oxford University Press, 2008)Tanisaki introduced generating sets for the defining ideals of the schematic intersections of the closure of conjugacy ...
-
Article
Conjugacy in Garside groups II: Structure of the ultra summit set
(European Mathematical Society, 2008)This paper is the second in a series in which the authors study the conjugacy decision problem (CDP) and the conjugacy ...
-
Article
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 ...
-
Article
Invariants and coinvariants of the symmetric group in noncommuting variables
(University of Toronto Press, 2008)We introduce a natural Hopf algebra structure on the space of noncommutative symmetric functions. The bases for this algebra ...
-
Article
Correspondance de Howe explicite: paires duales de type II
(Société Mathématique de France, 2008)Dans cet article, nous proposons une nouvelle méthode pour démontrer la bijectivité de la correspondance de Howe pour les ...
-
Article
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.
-
Article
Linearity conditions on the Jacobian ideal and logarithmic--meromorphic comparison for free divisors
(Cornell University, 2008-04-14)In this paper we survey the role of D-module theory in the comparison between logarithmic and meromorphic de Rham complexes ...
-
Article
Secondary homotopy groups
(De Gruyter, 2008-07)Secondary homotopy groups supplement the structure of classical homotopy groups. They yield a track functor on the track ...
-
Article
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 ...
-
Article
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 ...
-
Article
Smash products for secondary homotopy groups
(Springer, 2008-10)We construct a smash product operation on secondary homotopy groups yielding the structure of a lax symmetric monoidal functor. Applications on cup-one products, Toda brackets and Whitehead products are considered.
-
Article
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.
-
Article
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.
-
Article
Sur l’irréductibilité d’une induite parabolique
(De Gruyter, 2009)Let F be a non-Archimedean locally compact field and let D be a central division algebra over F. Let p1 and p2 be respectively ...
-
Article
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 ...
-
Article
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. ...
-
Article
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.
-
Article
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 ...