Sofic groups and finite Moufang loops

Let GG be a group. A group is sofic if, for every finite set XGX\subseteq G and every ε>0\varepsilon>0, there is a finite quasigroup (Q,)(Q,*) containing XX such that multiplication agrees on products in XX, the unit law fails on fewer than an ε\varepsilon-fraction of elements, and associativity fails on fewer than an ε\varepsilon-fraction of elements for each relevant pair. A group is locally embeddable into finite Moufang loops if every finite subset of GG admits an injective map into a finite Moufang loop preserving all products that remain in the subset.

Sofic–Moufang conjecture. A group GG is sofic if and only if it is locally embeddable into finite Moufang loops.

The conjecture proposes that finite Moufang loops provide the appropriate associative-enough subclass of finite IP loops for characterizing sofic groups. The source presents it as the second, less probable alternative to the preceding conjecture; its resolution is not supplied.

Sources & referencesView supporting material

Primary source

Martin Vodička and Pavol Zlatoš, “The Finite Embedding Property for IP Loops and Local Embeddability of Groups into Finite IP Loops”, arXiv:1810.07575 (2018).

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