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In this paper, we give two weak conditions for a lower semi‐continuous function on the n‐dimensional Euclidean space Rn to be a convex function. We also present some results for convex functions, strictly convex functions, and quasi‐convex functions.
convex function, strictly quasi-convex function, Convex functions, lower semi-continuous functions, quasi-convex function, quasi-convex functions., Convex functions and convex programs in convex geometry, QA1-939, strongly quasi-convex function, lower semi-continuous function, Mathematics, Convexity of real functions of several variables, generalizations
convex function, strictly quasi-convex function, Convex functions, lower semi-continuous functions, quasi-convex function, quasi-convex functions., Convex functions and convex programs in convex geometry, QA1-939, strongly quasi-convex function, lower semi-continuous function, Mathematics, Convexity of real functions of several variables, generalizations
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