Submitted on: 23 April 2017.
Revised on: 10 June 2017.
Accepted on: 12 July 2017.
___________________Journal of Nonlinear and Convex Analysis
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Submitted on: 30 May 2017.
Revised on: 23 July 2017.
Accepted on: 08 August 2017.
___________________Journal of Nonlinear and Convex Analysis
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Submitted on: 04 February 2009.
Revised on: 12 April 2009.
Accepted on: 18 May 2009.
___________________Journal of Nonlinear and Convex Analysis
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