Lectures on Dessins d'Enfants

“Generalized Onsager Algebras and Grothendieck’s Desssins d’Enfants” by Chernousov, Gille, and Pianzola

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Vladimir Chernousov, Philippe Gille and Arturo Pianzola have a new paper on the ArXiv entitled “Generalized Onsager Algebras and Grothendieck’s Dessins d’Enfants”.

Abstract.We define and classify the analogues of the affine Kac-Moody Lie algebras for the ring corresponding to the complex projective line minus three points. The classification is given in terms of Grothendieck’s dessins d’enfants. We also study the question of conjugacy of Cartan subalgebras for these algebras.

You can download the paper here.

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