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On the Jensen Functional and Strong Convexity

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Abstract

In this note we describe some results concerning upper and lower bounds for the Jensen functional. We use several known and new results to shed light on the concept of a strongly convex function.

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References

  1. Dragomir, S.S.: Bounds for the normalised Jensen functional. Bull. Austral. Math. Soc. 74, 471–478 (2006)

    Article  MathSciNet  MATH  Google Scholar 

  2. Hiriart-Urruty, J.B., Lemaréchal, C.: Fundamentals of Convex Analysis. Springer, Berlin Heidelberg (2001)

    Book  MATH  Google Scholar 

  3. Merentes, N., Nikodem, K.: Remarks on strongly convex functions. Aequationes Math. 80(1–2), 193–199 (2010)

    Article  MathSciNet  MATH  Google Scholar 

  4. Mitroi, F.-C.: Estimating the normalized Jensen functional. J. Math. Inequal. 5(4), 507–521 (2011)

    Article  MathSciNet  MATH  Google Scholar 

  5. Mitroi, F.-C.: Connection between the Jensen and the Chebychev functionals, International Series of Numerical Mathematics, 1. In: Bandle, C., Gilanyi, A., Losonczi, L., Plum, M. (eds.). Inequalities and Applications 2010, Part 5, Dedicated to the Memory of Wolfgang Walter, vol. 161, pp. 217–227. Birkhäuser, Basel,(2012). doi:10.1007/978-3-0348-0249-9_17

  6. Nikodem, K., Páles, Zs.: On t-Convex Functions. Real Analysis Exchange 29(1), 219-228 (2003/2004)

  7. Polyak, B.T.: Existence theorems and convergence of minimizing sequences in extremum problems with restrictions. Soviet. Math. Dokl. 7, 72–75 (1966)

    Google Scholar 

  8. Rajba, T., Wąsowicz, Sz: Probabilistic characterization of strong convexity. Opusc. Math. 31(1), 97–103 (2011)

    Article  MathSciNet  MATH  Google Scholar 

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Acknowledgments

The first author is grateful to Professors S. Abramovich and S.S. Dragomir for the interesting and productive mathematical discussions which have led to some of the questions this work is intended to answer.

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Correspondence to Nicuşor Minculete.

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Communicated by V. Ravichandran.

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Mitroi-Symeonidis, FC., Minculete, N. On the Jensen Functional and Strong Convexity. Bull. Malays. Math. Sci. Soc. 41, 311–319 (2018). https://doi.org/10.1007/s40840-015-0293-z

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  • DOI: https://doi.org/10.1007/s40840-015-0293-z

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