The adjoint braid arrangement as a combinatorial Lie algebra via the Steinmann relations

We study a certain discrete differentiation of piecewise-constant functions on the adjoint of the braid hyperplane arrangement, defined by taking finite-differences across hyperplanes. In terms of Aguiar-Mahajan's Lie theory of hyperplane arrangements, we show that this structure is equivalent...

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Hauptverfasser:	Liu, Zhengwei, Norledge, William, Ocneanu, Adrian
Format:	Artikel
Sprache:	eng
Schlagworte:	Mathematics - Combinatorics
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