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Pythagorean Property and Best-Proximity Point Theorems

Author

Listed:
  • Rafael Espínola

    (IMUS, Universidad de Sevilla)

  • G. Sankara Raju Kosuru

    (Indian Statistical Institute Bangalore)

  • P. Veeramani

    (Indian Institute of Technology Madras)

Abstract

In this paper, a notion called proximally complete pair of subsets of a metric space is introduced, which weakens earlier notions in the theory of best-proximity points. By means of this notion, existence and convergence results of best-proximity points are proven for cyclic contraction mappings, which extent other recent results. By observing geometrical properties of Hilbert spaces, the so-called Pythagorean property is introduced. This property is employed to provide sufficient conditions for a cyclic map to be a cyclic contraction.

Suggested Citation

  • Rafael Espínola & G. Sankara Raju Kosuru & P. Veeramani, 2015. "Pythagorean Property and Best-Proximity Point Theorems," Journal of Optimization Theory and Applications, Springer, vol. 164(2), pages 534-550, February.
  • Handle: RePEc:spr:joptap:v:164:y:2015:i:2:d:10.1007_s10957-014-0583-x
    DOI: 10.1007/s10957-014-0583-x
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    Citations

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    Cited by:

    1. Hakan Sahin, 2022. "A New Best Proximity Point Result with an Application to Nonlinear Fredholm Integral Equations," Mathematics, MDPI, vol. 10(4), pages 1-14, February.
    2. Slah Sahmim & Abdelbasset Felhi & Hassen Aydi, 2019. "Convergence and Best Proximity Points for Generalized Contraction Pairs," Mathematics, MDPI, vol. 7(2), pages 1-12, February.
    3. Poom Kumam & Chirasak Mongkolkeha, 2019. "Global Optimization for Quasi-Noncyclic Relatively Nonexpansive Mappings with Application to Analytic Complex Functions," Mathematics, MDPI, vol. 7(1), pages 1-8, January.

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