Cohomology theory for matched pairs of Leibniz algebras and its applications

Abstract: This paper introduces the concept of representations for matched pairs of Leibniz algebras and develops corresponding cohomology theories, examining how cohomology groups can be applied in the context of matched pairs of Leibniz algebras. Initially, we utilize the cohomology theory to investigate infinitesimal deformations and abelian extensions of matched pairs of Leibniz algebras. Next, given an abelian extension of a matched pair of Leibniz algebras and its representation, we explore the inducibility of pairs of automorphisms, deriving both necessary and sufficient conditions for the inducibility problem. Lastly, we delve deeper into the inducibility of pairs of automorphisms using the Wells exact sequences, offering a clear framework for studying the inducibility of pairs of automorphisms.