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A. W. Roberts and D. E. Varberg, “Functions of Bounded Convexity,” Bulletin of the AMS—American Mathematical Society, Vol. 75, No. 3, 1969, pp. 568-572. doi:10.1090/S0002-9904-1969-12244-5

has been cited by the following article:

• TITLE: On Second Riesz Φ-Variation of Normed Space Valued Maps

  AUTHORS: Mireya Bracamonte, José Giménez, N. Merentes, J. L. Sánchez

  KEYWORDS: Young Function; Φ-Variation; Second Φ-Variation of a Function

  JOURNAL NAME: Advances in Pure Mathematics, Vol.2 No.1, January 6, 2012

  ABSTRACT: In this article we present a Riesz-type generalization of the concept of second variation of normed space valued functions defined on an interval [a,b]R. We show that a function f [a,b], where X is a reflexive Banach space, is of bounded second Φ-variation, in the sense of Riesz, if and only if it can be expressed as the (Bochner) integral of a function of bounded (first) $\Phi$-variation. We provide also a Riesz lemma type inequality to estimate the total second Riesz-Φ-variation introduced.