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arXiv 1808.08698math.QA
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奇球面上的Hopf相互作用

Hopf coactions on odd spheres

Suvrajit Bhattacharjee, Debashish Goswami

摘要:

我们证明了q-变形的酉群,即,$U_q(N)$是(紧)量子群范畴中的普适紧量子群,它作用在q-变形的奇球$S_q^{2N-1}$上,使生成元的自然集所跨越的空间保持不变,并保持$S_q^{2N-1}$上唯一的$SU_q(N)$不变泛函。利用这一点,我们确定$U_q(N)$作为量子群的方向保持等距(在Bhowmick和Goswami \cite{MR2555012}的意义上)的自然频谱三元组与$S_q^{2N-1}$构造的Chakraborty和Chakruborty \cite{MR2458039}。

英文摘要:

We prove that the q-deformed unitary group, i.e., $U_q(N)$, is the universal compact quantum group in the category of (compact) quantum groups which coact on the q-deformed odd sphere $S_q^{2N-1}$ leaving the space spanned by the natural set of generators invariant and preserving the unique $SU_q(N)$ invariant functional on $S_q^{2N-1}$. Using this, we identify $U_q(N)$ as the quantum group of orientation preserving isometries (in the sense of Bhowmick and Goswami \cite{MR2555012}) for a natural spectral triple associated with $S_q^{2N-1}$ constructed by Chakraborty and Pal \cite{MR2458039}.

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