Journal
OPTIMIZATION
Volume 72, Issue 1, Pages 263-276Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/02331934.2022.2041012
Keywords
Linear fractional vector optimization; efficient solution; Geoffrion's properly efficient solution; Benson's characterization; tangent cone
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This paper investigates the properness of efficient solutions in the sense of Geoffrion for linear fractional vector optimization problems with unbounded constraint sets. Sufficient conditions for an efficient solution to be Geoffrion's properly efficient solution are obtained via Benson's characterization.
Linear fractional vector optimization problems are special non-convex vector optimization problems. They were introduced and first studied by E.U. Choo and D.R. Atkins in the period 1982-1984. This paper investigates the properness in the sense of Geoffrion of the efficient solutions of linear fractional vector optimization problems with unbounded constraint sets. Sufficient conditions for an efficient solution to be Geoffrion's properly efficient solution are obtained via Benson's characterization [An improved definition of proper efficiency for vector maximization with respect to cones. J Math Anal Appl. 1979;71:232-241] of Geoffrion's proper efficiency.
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