UPB Scientific Bulletin, Series A: Applied Mathematics and Physics, cilt.82, sa.2, ss.37-42, 2020 (SCI-Expanded)
Let (M2k, ϕ, g) be an almost anti-paraHermitian manifold and (T M, gBS) be its tangent bundle with a Berger type deformed Sasaki metric gBS . In this paper, we deal with the harmonicity of the canonical projection π: T M → M and a vector field ξ which is considered as a map ξ: M → T M.