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تسجيل مستخدم جديدOn unrolled Hopf algebras
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We show that the definition of unrolled Hopf algebras can be naturally extended to the Nichols algebra $mathcal{B}$ of a Yetter-Drinfeld module $V$ on which a Lie algebra $mathfrak g$ acts by biderivations. Specializing to Nichols algebras of diagonal type, we find unroll
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