S4 symmetry of 6j symbols and Frobenius–Schur indicators in rigid monoidal C* categories

S4 symmetry of 6j symbols and Frobenius–Schur indicators in rigid monoidal C* categories
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刚性幺半群 C* 类别中 6j 符号和 Frobenius-Schur 指标的 S4 对称性

DOI:
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发表时间:
1998
期刊:
影响因子:
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通讯作者:
P. Vecsernyés
P. Vecsernyés
中科院分区:
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文献类型:
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作者:
J. Fuchs;A. Ganchev;K. Szlachányi;P. Vecsernyés

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证明了具有不可约monoidal单位的左刚性monoidal C* 范畴也是主权球面范畴。定义一个Frobenius-Schur型指标,我们得到的不可约对象的融合系数的选择规则。作为主要结果,我们证明了这类范畴中6 j符号的S4不变性,并证明了具有不可约么半群单位的左刚性么半群C ~* 范畴也是主权球面范畴。定义一个Frobenius-Schur型指标,我们得到的不可约对象的融合系数的选择规则。作为主要结果,我们证明了在这样一个范畴中6 j个符号的S4不变性。
We show that a left-rigid monoidal C* category with irreducible monoidal unit is also a sovereign and spherical category. Defining a Frobenius–Schur-type indicator we obtain selection rules for the fusion coefficients of irreducible objects. As a main result we prove S4 invariance of 6j symbols in such a category.We show that a left-rigid monoidal C* category with irreducible monoidal unit is also a sovereign and spherical category. Defining a Frobenius–Schur-type indicator we obtain selection rules for the fusion coefficients of irreducible objects. As a main result we prove S4 invariance of 6j symbols in such a category.