Results 31 to 40 of about 41,770 (202)

Involutory Quasi-Hopf Algebras [PDF]

open access: yesAlgebras and Representation Theory, 2009
26 ...
Bulacu, D.   +2 more
openaire   +3 more sources

κ-deformed BMS symmetry

open access: yesPhysics Letters B, 2019
We present the quantum κ-deformation of BMS symmetry, by generalizing the lightlike κ-Poincaré Hopf algebra. On the technical level our analysis relies on the fact that the lightlike κ-deformation of Poincaré algebra is given by a twist and the lightlike
Andrzej Borowiec   +3 more
doaj   +1 more source

Semisimple Hopf Algebras

open access: yesJournal of Algebra, 1995
The authors study the structure of finite dimensional semisimple Hopf algebras over a field \(K\), using the trace formula, the Nichols-Zoeller theorem [\textit{W. D. Nichols} and \textit{M. B. Zoeller}, J. Pure Appl. Algebra 56, 51-57 (1989; Zbl 0659.16006)] and the authors' results in other papers.
Larson, R.G., Radford, D.E.
openaire   +1 more source

Hopf Differential Graded Galois Extensions

open access: yesMathematics, 2022
We introduce the concept of Hopf dg Galois extensions. For a finite dimensional semisimple Hopf algebra H and an H-module dg algebra R, we show that D(R#H)≅D(RH) is equivalent to that R/RH is a Hopf differential graded Galois extension.
Bo-Ye Zhang
doaj   +1 more source

基本弱Hopf代数和弱覆盖箭图(Basic weak Hopf algebra and weak covering quiver)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2016
We introduce a finite-dimensional basic and split weak Hopf algebra H over an algebraically closed field k with strongly graded Jacobson radical r. We obtain some structures of a finite-dimensional basic and split semilattice graded weak Hopf algebra,and
AHMEDMunir(穆尼尔•艾哈迈德)   +1 more
doaj   +1 more source

Integrals in Hopf algebras over rings [PDF]

open access: yes, 2003
Integrals in Hopf algebras are an essential tool in studying finite dimensional Hopf algebras and their action on algebras. Over fields it has been shown by Sweedler that the existence of integrals in a Hopf algebra is equivalent to the Hopf algebra ...
Lomp, Christian
core   +2 more sources

Biperfect Hopf Algebras

open access: yesJournal of Algebra, 2000
Recall that a finite group is called perfect if it does not have non-trivial 1-dimensional representations (over the field of complex numbers C). By analogy, let us say that a finite dimensional Hopf algebra H over C is perfect if any 1-dimensional H-module is trivial. Let us say that H is biperfect if both H and H^* are perfect.
Etingof, Pavel   +3 more
openaire   +3 more sources

Cambrian Hopf algebras

open access: yesAdvances in Mathematics, 2017
60 pages, 43 figures. Version 2: New Part 3 on Schr\"oder Cambrian Algebra.
Chatel, Grégory, Pilaud, Vincent
openaire   +3 more sources

The Cambrian Hopf Algebra [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2015
Cambrian trees are oriented and labeled trees which fulfill local conditions around each node generalizing the conditions for classical binary search trees.
G. Chatel, V. Pilaud
doaj   +1 more source

Quiver Hopf algebras

open access: yesJournal of Algebra, 2004
If \(Q\) is a Schurian Hopf quiver and \(k\) is a field of characteristic zero, the simple pointed Hopf subalgebras of a graded Hopf algebra structure on the path coalgebra \(kQ^c\) are classified. A dual Gabriel theorem for pointed Hopf algebras is proved.
van Oystaeyen, Fred, Zhang, Pu
openaire   +2 more sources

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