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Displaying 721 – 740 of 3959

Deformed commutators on comodule algebras over coquasitriangular Hopf algebras

Zhongwei Wang, Guoyin Zhang, Liangyun Zhang (2015)

Colloquium Mathematicae

We construct quantum commutators on comodule algebras over coquasitriangular Hopf algebras, so that they are quantum group coinvariant and have the generalized antisymmetry and Leibniz properties. If the coquasitriangular Hopf algebra is additionally cotriangular, then the quantum commutators satisfy a generalized Jacobi identity, and turn the comodule algebra into a quantum Lie algebra. Moreover, we investigate the projective and injective dimensions of some Doi-Hopf modules over a quantum commutative...

Deformed enveloping algebras.

Sommerhäuser, Yorck (1996)

The New York Journal of Mathematics [electronic only]

Deformed mesh algebras of Dynkin type ℂₙ

Jerzy Białkowski, Karin Erdmann, Andrzej Skowroński (2012)

Colloquium Mathematicae

In our recent paper (J. Algebra 345 (2011)) we prove that the deformed preprojective algebras of generalized Dynkin type ₙ (in the sense of our earlier work in Trans. Amer Math. Soc. 359 (2007)) are exactly (up to isomorphism) the stable Auslander algebras of simple plane singularities of Dynkin type $_{2 n}$ . In this article we complete the picture by showing that the deformed mesh algebras of Dynkin type ℂₙ are isomorphic to the canonical mesh algebras of type ℂₙ, and hence to the stable Auslander algebras...

Degenerations for indecomposable modules and tame algebras

Andrzej Skowroński, Grzegorz Zwara (1998)

Annales scientifiques de l'École Normale Supérieure

Degenerations for modules over representation-finite selfinjective algebras

Grzegorz Zwara (1998)

Colloquium Mathematicae

Degenerations for representations of quivers with relations

Christine Riedtmann (1986)

Annales scientifiques de l'École Normale Supérieure

Degenerations for representations of tame quivers

Klaus Bongartz (1995)

Annales scientifiques de l'École Normale Supérieure

Degenerations in the module varieties of almost cyclic coherent Auslander-Reiten components

Piotr Malicki (2009)

Colloquium Mathematicae

We establish when the partial orders $\leq_{e x t}$ and $\leq_{d e g}$ coincide for all modules of the same dimension from the additive category of a generalized standard almost cyclic coherent component of the Auslander-Reiten quiver of a finite-dimensional algebra.

Degenerations in the Module Varieties of Generalized Standard Auslander-Reiten Components

Grzegorz Zwara (1997)

Colloquium Mathematicae

Degree 1 and 2 representations of nilpotent groups and applications to units of group rings.

E. Jespers, G. Leal (1995)

Manuscripta mathematica

Degree estimate for subalgebras generated by two elements

Leonid Makar-Limanov, Jie-Tai Yu (2008)

Journal of the European Mathematical Society

We develop a new combinatorial method to deal with a degree estimate for subalgebras generated by two elements in different environments. We obtain a lower bound for the degree of the elements in two-generated subalgebras of a free associative algebra over a field of zero characteristic. We also reproduce a somewhat refined degree estimate of Shestakov and Umirbaev for the polynomial algebra, which plays an essential role in the recent celebrated solution of the Nagata conjecture and the strong...

The goal of this paper is to provide some basic structure information on derivations in finite semirings.

Currently displaying 721 – 740 of 3959

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Displaying 721 – 740 of 3959

Deformed commutators on comodule algebras over coquasitriangular Hopf algebras

Deformed enveloping algebras.

Deformed mesh algebras of Dynkin type ℂₙ

Degenerations for indecomposable modules and tame algebras

Degenerations for modules over representation-finite selfinjective algebras

Degenerations for representations of quivers with relations

Degenerations for representations of tame quivers

Degenerations in the module varieties of almost cyclic coherent Auslander-Reiten components

Degenerations in the Module Varieties of Generalized Standard Auslander-Reiten Components

Degree 1 and 2 representations of nilpotent groups and applications to units of group rings.

Degree estimate for subalgebras generated by two elements

Dependent elements of derivations on semiprime rings.

Der Wedderburnsche Hauptsatz für alternative Tripelsysteme und Paare.

Derivation-like mappings for normal elements in prime rings with involution.

Derivations and multilinear polynomials

Derivations in rings with involution

Derivations in some finite endomorphism semirings

Derivations of higher order in semiprime rings.

Derivations of Skew Polynomial Rings

Derivations of the algebra $U_{q}^{+} (B_{2})$ . (Dérivations de l'algèbre $U_{q}^{+} (B_{2})$ .)

Currently displaying 721 – 740 of 3959