On the Enumeration of Finite $L$-Algebras

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Date
2022-06-29MFO Scientific Program
OWRF 2022Series
Oberwolfach Preprints;2022-11Author
Dietzel, Carsten
Menchón, Paula
Vendramin, Leandro
Metadata
Show full item recordOWP-2022-11
Abstract
We use Constraint Satisfaction Methods to construct and enumerate finite L-algebras up to isomorphism. These objects were recently introduced by Rump and appear in Garside theory, algebraic logic, and the study of the combinatorial Yang-Baxter equation. There are 377322225 isomorphism classes of $L$-algebras of size eight. The database constructed suggest the existence of bijections between certain classes of $L$-algebras and well-known combinatorial objects. On the one hand, we prove that Bell numbers enumerate isomorphism classes of finite linear $L$-algebras. On the other hand, we also prove that finite regular $L$-algebras are in bijective correspondence with infinite-dimensional Young diagrams.