For the linear fractional vector optimization problem, a sufficient optimality condition for Geoffrion proper efficient solutions has been established by using the recession cones of the feasible set.On this basis, the scope of the cones is extended in the assumption from the recession cones to the tangent cones.Utilizing the equivalence between Geoffrion proper efficient solutions and Benson proper efficient solutions in vector optimization problems, a new sufficient optimality condition for Geoffrion proper efficient solutions is derived, and corresponding examples are provided to verify the conclusions.
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