JOURNAL OF ALGEBRA AND ITS APPLICATIONS, cilt.16, sa.11, 2017 (SCI-Expanded)
Let L-m,L- n be the free nilpotent Lie algebra of finite rank m, m >= 2 and nilpotency class n - 1 over a field of characteristic zero. We give a characterization of central automorphisms of L-m,L- n and we find sufficient conditions for an automorphism of L-m,L- n to be a central automorphism.