Rank 4 Nichols Algebras of Pale Braidings
نویسندگان
چکیده
We classify finite GK-dimensional Nichols algebras ${\mathscr B}(V)$ of rank 4 such that $V$ arises as a Yetter-Drinfeld module over an abelian group but it is not direct sum points and blocks.
منابع مشابه
4 Triangular braidings and pointed Hopf algebras ⋆
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1. The statement This brief note is devoted to a simple (and well-known) result in noncommutative algebra, which is not deep but nevertheless subtler than it appears. It concerns the so-called quaternion algebras: Definition 1.1. Let k be a commutative ring1. Let a ∈ k and b ∈ k. The quaternion algebra Ha,b is defined to be the k-algebra with generators i and j and relations i2 = a, j2 = b, ij ...
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ژورنال
عنوان ژورنال: Symmetry Integrability and Geometry-methods and Applications
سال: 2023
ISSN: ['1815-0659']
DOI: https://doi.org/10.3842/sigma.2023.021