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Published in 2017 at "Mathematische Annalen"
DOI: 10.1007/s00208-017-1531-5
Abstract: We show that the first $${\ell }^2$$ℓ2-Betti number of the duals of the free unitary quantum groups is one, and that all $${\ell }^2$$ℓ2-Betti numbers vanish for the duals of the quantum automorphism groups of…
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Keywords:
ell betti;
universal quantum;
quantum groups;
numbers universal ... See more keywords
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Published in 2019 at "Communications in Mathematical Physics"
DOI: 10.1007/s00220-019-03597-z
Abstract: The first example of a quantum group was introduced by P. Kulish and N. Reshetikhin. In the paper Kulish et al. (J Soviet Math 23:2435–2441, 1983), they found a new algebra which was later called $$U_q (\mathfrak {sl}(2))$$…
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Keywords:
quantum;
quantum groups;
galois cohomology;
cohomology ... See more keywords
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Published in 2020 at "Algebras and Representation Theory"
DOI: 10.1007/s10468-020-09956-y
Abstract: We construct a family of right coideal subalgebras of quantum groups, which have the property that all irreducible representations are one-dimensional, and which are maximal with this property. The obvious examples for this are the…
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Keywords:
borel subalgebras;
family new;
quantum groups;
subalgebras quantum ... See more keywords
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Published in 2021 at "Letters in Mathematical Physics"
DOI: 10.1007/s11005-021-01468-0
Abstract: We will introduce the notion of inductive limits of compact quantum groups as $W^*$-bialgebras equipped with some additional structures. We also formulate their unitary representation theories. Those give a more explicit representation-theoretic meaning to our…
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Keywords:
inductive limits;
unitary representations;
quantum groups;
compact quantum ... See more keywords
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Published in 2018 at "Journal of Algebra"
DOI: 10.1016/j.jalgebra.2018.06.007
Abstract: Abstract Let U e ( g ) be the standard simply connected version of the Drinfeld–Jumbo quantum group at an odd m-th root of unity e. The center of U e ( g ) contains…
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Keywords:
whittaker vectors;
quantum groups;
representations quantum;
roots unity ... See more keywords
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Published in 2018 at "Journal of Mathematical Physics"
DOI: 10.1063/1.5037820
Abstract: The uncertainty principle has been established within the framework of locally compact quantum groups in recent years. This paper demonstrates that entropic uncertainty relations can be strengthened under localizations on discrete quantum groups, which is…
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Keywords:
quantum;
entropic uncertainty;
uncertainty relations;
localizations discrete ... See more keywords
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Published in 2018 at "Infinite Dimensional Analysis, Quantum Probability and Related Topics"
DOI: 10.1142/s0219025718500170
Abstract: We study the first and second cohomology groups of the ∗-algebras of the universal unitary and orthogonal quantum groups UF+ and OF+. This provides valuable information for constructing and classifying Levy processes on these quantum…
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Keywords:
quantum;
decompositions generating;
quantum groups;
khintchine decompositions ... See more keywords
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Published in 2019 at "Journal of Algebra and Its Applications"
DOI: 10.1142/s0219498820501248
Abstract: In this paper, we study (asymptotic) properties of the ∗-distribution of irreducible characters of finite quantum groups. We proceed in two steps, first examining the representation theory to determine irreducible representations and their powers, then…
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Keywords:
trace powers;
distribution;
quantum groups;
powers representations ... See more keywords
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Published in 2017 at "Kyoto Journal of Mathematics"
DOI: 10.1215/21562261-2017-0005
Abstract: AbstractWe use a tensor C ∗ –category with conjugates and two quasitensor func-tors into the category of Hilbert spaces to define a C ∗ –algebra dependingfunctorially on this data. A particular case of this construction…
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Keywords:
conjugate equations;
ergodic actions;
actions compact;
quantum groups ... See more keywords