Results 51 to 60 of about 105 (96)

Pointed Hopf Algebras and Kaplansky's 10th Conjecture

open access: yesJournal of Algebra, 1998
\textit{D. E. Radford} constructed several families of pointed finite-dimensional Hopf algebras over a field \(k\) [Advances in Hopf algebras, Lect. Notes Pure Appl. Math. 158, 205-266 (1994; Zbl 0841.57044)]. The author of the paper under review generalized one of Radford's families to a family of Hopf algebras \(H\) which captures all Hopf algebras ...
openaire   +2 more sources

Pointed Hopf algebras of discrete corepresentation type

open access: yesJournal of Pure and Applied Algebra
We classify pointed Hopf algebras of discrete corepresentation type over an algebraically closed field K with characteristic zero. For such algebras $H$, we explicitly determine the algebra structure up to isomorphism for the link indecomposable component $B$ containing the unit.
Miodrag Cristian Iovanov   +3 more
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Hopf Q-braces structures on rank one pointed Hopf algebras

open access: yesJournal of Algebra and Its Applications
In this paper we determine all the Hopf [Formula: see text]-brace structures on rank one pointed Hopf algebras and compute the socle of each one of them. We also identify which among them are Hopf skew-braces. Then we determine when two Hopf [Formula: see text]-brace structures on rank one pointed Hopf algebras are isomorphic, and, finally, we compute
Jorge A. Guccione   +2 more
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Finite-dimensional Hopf Algebras over the Smallest Non-pointed Basic Hopf Algebra

open access: yesFrontiers of Mathematics
We classify finite-dimensional Hopf algebras over an algebraically closed field of characteristic zero whose Hopf coradcial is isomorphic to the smallest non-pointed basic Hopf algebra, under the assumption that the diagrams are strictly graded. In particular, we obtain some new Nichols algebras of non-diagonal type and new finite-dimensional Hopf ...
openaire   +3 more sources

Pointed Hopf algebras as cocycle deformations

open access: yes, 2010
We show that all finite dimensional pointed Hopf algebras with the same diagram in the classification scheme of Andruskiewitsch and Schneider are cocycle deformations of each other. This is done by giving first a suitable characterization of such Hopf algebras, which allows for the application of results by Masuoka about Morita-Takeuchi equivalence and
Grunenfelder, L., Mastnak, M.
openaire   +2 more sources

New techniques for pointed Hopf algebras

open access: yes, 2008
29 pages, small ...
Andruskiewitsch, N., Fantino, F.
openaire   +2 more sources

Cumulants, free cumulants and half-shuffles. [PDF]

open access: yesProc Math Phys Eng Sci, 2015
Ebrahimi-Fard K, Patras F.
europepmc   +1 more source

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