Quantum automorphism groups of small metric spaces

Quantum automorphism groups of small metric spaces
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小度量空间的量子自同构群

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发表时间:
2003
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通讯作者:
T. Banica
T. Banica
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作者:
T. Banica

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对任何人?在有限度量空间X上,我们把作用在X上的泛HopfC *-代数H联系起来。本文证明了至多有7个点的空间X属于以下几类之一:(1)H的余作用是不可传递的;(2)H是X的自同构群上的函数代数;(3)X是单形,H对应于Temperley?Lieb代数;(4)X是单形的乘积,H对应于Fuss?加泰罗尼亚代数。
To any ?nite metric space X we associate the universal Hopf C*-algebra H coacting on X. We prove that spaces X having at most 7 points fall into one of the following classes: (1) the coaction of H is not transitive; (2) H is the algebra of functions on the automorphism group of X; (3) X is a simplex and H corresponds to a Temperley?Lieb algebra; (4) X is a product of simplices and H corresponds to a Fuss?Catalan algebra.