UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN-SERIES A-APPLIED MATHEMATICS AND PHYSICS, cilt.82, sa.2, ss.37-42, 2020 (SCI-Expanded)
Let (M-2k, phi, g) be an almost anti-paraHermitian manifold and (TM, g(BS)) be its tangent bundle with a Berger type deformed Sasaki metric g(BS). In this paper, we deal with the harmonicity of the canonical projection pi : TM -> M and a vector field xi which is considered as a map xi : M -> TM.