Abstract
If ε>1/4 andX is 3,ε-convex thenX is reflexive. Some additional values ofk and ε with k≧4 are found for whichk,ε-convexity implies reflexivity.
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Giesy, D.P. B-convexity and reflexivity. Israel J. Math. 15, 430–436 (1973). https://doi.org/10.1007/BF02757082
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DOI: https://doi.org/10.1007/BF02757082