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تسجيل مستخدم جديدA note on the logarithmic-W_3 octuplet algebra and its Nichols algebra
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تأليف
A. M. Semikhatov
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We describe a Nichols-algebra-motivated construction of an octuplet chiral algebra that is a W_3-counterpart of the triplet algebra of (p,1) logarithmic models of two-dimensional conformal field theory.
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We rederive a popular nonsemisimple fusion algebra in the braided context, from a Nichols algebra. Together with the decomposition that we find for the product of simple Yetter-Drinfeld modules, this strongly suggests that the relevant Nichols algebr
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For a C1-cofinite vertex algebra V, we give an efficient way to calculate Zhus algebra A(V) of V with respect to its C1-generators and relations. We use two examples to explain how this method works.
Given a finite dimensional Lie algebra $L$ let $I$ be the augmentation ideal in the universal enveloping algebra $U(L)$. We study the conditions on $L$ under which the $Ext$-groups $Ext (k,k)$ for the trivial $L$-module $k$ are the same when computed
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