Brace algebra involves higher-order operations related to the study of -algebras. There is a sequence of canonical functors
dendriform algebras –> brace algebras –> pre-Lie algebras
Hence, in some sense, brace algebras are intermediate between dendriform algebras and pre-Lie algebras.
There is also a notion of a symmetric brace algebra which has analogous role for -algebras instead of . They are related to post-Lie algebras.
Trudy Tbiliss. Mat. Inst. Razmadze Akad. Nauk Gruzin. SSR 91 (1988) 19–27. MR91a:18016
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