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Local and 2-local automorphisms of solvable Leibniz algebras with abelian and model nilradicals

I. A. KarimjanovV.I. Romanovskiy Institute of Mathematics, Uzbekistan Academy of Sciences, University Street, 9, Olmazor district, Tashkent, 100174, UzbekistanSardorbek UmrzaqovDepartment of Mathematics, Andijan State University, 129, Universitet Street, Andijan, 170100, UzbekistanBakhtiyor YusupovV.I. Romanovskiy Institute of Mathematics, Uzbekistan Academy of Sciences, University Street, 9, Olmazor district, Tashkent, 100174, Uzbekistan

Quaestiones Mathematicaejournal2023en

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AbstractIn the paper, we describe the automorphisms on the solvable Leibniz algebras with the model or abelian nilradicals, whose complementary spaces are equal to two and one, respectively. We show that any local automorphism on a solvable Leibniz algebra with model nilradical of maximal codimension is an automorphism. We show that solvable Leibniz algebras with abelian nilradicals, which have 1-dimension complementary space, admit local automorphisms which are not automorphisms. Moreover, similar problems concerning 2-local automorphisms of such algebras are investigated. We give examples of solvable Leibniz algebras in which 2-local automorphisms are automorphisms and examples of such algebras which admit 2-local automorphisms which are not automorphisms.Mathematics Subject Classification (2020): 08A3517A3217A36Key words: Leibniz algebrassolvable algebrasnilpotent algebrasautomorphismslocal automorphisms2-local automorphisms

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Identifikatorlar

DOI: 10.2989/16073606.2023.2278745

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