Conformal vector fields on f-cosymplectic manifolds

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In this paper, at first we characterize f-cosymplectic manifolds admitting conformal vector fields. Next, we establish that if a 3-dimensional f -cosymplectic manifold admits a homothetic vector field V, then either the manifold is of constant sectional curvature ?f?r, V is an infinitesimal contact transformation. Furthermore, we also investigate Ricci-Yamabe solitons with conformal vector fields on f-cosymplectic manifolds. At last, two examples are constructed to validate our outcomes