SOME RESULTS ON α-COSYMPLETIC MANIFOLDS.

In this paper, we deal with some geometric properties of an α-cosymplectic manifold. First, we give some classifications for an α-cosymplectic manifold endowed with some special vector fields such as projective, concircular and torse-forming. Then, we study αcosymplectic manifold admitting ƞ-Ricci solitons with projective, affine conformal vector fields. Finally, we obtain some characterizations for such a manifold to be Einstein, ƞ-Einstein, cosymplectic. [ABSTRACT FROM AUTHOR]