Notes on the differentiation of quasi-convex functions
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🧮 math.AP
math.CAmath.CVmath.DG
keywords
basicfunctionsquasi-convexadequatealongapplycasescombined
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This expository paper presents elementary proofs of four basic results concerning derivatives of quasi-convex functions. They are combined into a fifth theorem which is simple to apply and adequate in many cases. Along the way we establish the equivalence of the basic lemmas of Jensen and Slodkowski.
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