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math.RT2024
Posets of finite GK-dimensional graded pre-Nichols algebras of diagonal type
Iván Angiono, Emiliano Campagnolo
We classify graded pre-Nichols algebras of diagonal type with finite Gelfand-Kirillov dimension. The characterization is made through an isomorphism of posets with the family of ap…
math.QA2024
Contragredient Lie algebras in symmetric categories
Iván Angiono, Julia Plavnik, Guillermo Sanmarco
We define contragredient Lie algebras in symmetric categories, generalizing the construction of Lie algebras of the form for a Cartan matrix from the category…