Rhizaform algebras

Abstract: Any anti-associative algebra gives rise to a Jacobi-Jordan algebra by [x, y] = xy + yx. This article aims to introduce the concept of "rhizaform algebras", which offer an approach to addressing anti-associativity. These algebras are defined by two operations whose sum is anti-associative, with the left and right multiplication operators forming bimodules of the sum of anti-associative algebras. This characterization parallels that of dendriform algebras, where the sum of operations preserves associativity. Additionally, the notions of O-operators and Rota-Baxter operators on anti-associative algebras are presented as tools to interpret rhizaform algebras. Notably, anti-associative algebras with nondegenerate Connes cocycles admit compatible rhizaform algebra structures.