2018
DOI: 10.1007/s40863-018-0109-9
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Some advances about the existence of compact involutions in semisimple Hopf algebras

Abstract: In this paper we show that all complex semisimple Hopf algebras of dimension less than 24 are compact quantum groups. To do this, we survey all the above algebras and show explicitly that they can be described by bicrossed products of group algebras and its duals. We also study the behaviour under twisting of compact quantum groups. Using this we show that certain families of triangular semisimple Hopf algebras are compact quantum groups.

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Cited by 9 publications
(8 citation statements)
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“…Here by definition R 12 = R (1) ⊗ R (2) ⊗ 1 and similarly for R 13 and R 23 . The element R is called a universal R-matrix of H or a quasitriangular structure on H. Dually, the definition of coquasitriangular Hopf algebra can be given as follows.…”
Section: Preliminariesmentioning
confidence: 99%
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“…Here by definition R 12 = R (1) ⊗ R (2) ⊗ 1 and similarly for R 13 and R 23 . The element R is called a universal R-matrix of H or a quasitriangular structure on H. Dually, the definition of coquasitriangular Hopf algebra can be given as follows.…”
Section: Preliminariesmentioning
confidence: 99%
“…we have e h g i , e k g j e r g m = (e h g i ) (1) , e r g m (e h g i ) (2) , e k g j . Finally, we will show the following equation (e h g i ) (1) , (e k g j ) (1) (e h g i ) (2) (e k g j ) (2) = (e k g j ) (1) (e h g i ) (1) (e h g i ) (2) , (e k g j ) (2) . (4.1) Since (e h g i ) (1) , (e k g j ) (1) (e h g i ) (2) (e k g j ) (2) = rs=h cd=k e r g i , e c g j (e s g i )(e and R∆(a) = r,s∈G w(r, s)e r (s ⊲ a) ⊗ e s a.…”
mentioning
confidence: 99%
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“…Take an odd number n and let t be a primitive nth root of 1 in k, then the Hopf algebras A 2n 2 ,t were defined in [8,Definition 1.2]. By definition, they belong to k G # σ,τ kZ 2 and the data (G, ⊳, σ, τ ) of A 2n 2 ,t can be described as follows (see [1,Section 2.3.4]…”
Section: 2mentioning
confidence: 99%
“…1 ⊳x,t 2 ⊳x) τ (t 2 ,t 1 ) w(t 1 , t 2 ) for t 1 , t 2 ∈ T . Proposition 4.14 above simplifies the test for the condition (v) in Definition 4.5, so it will be used frequently in next sections.…”
mentioning
confidence: 99%