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Submitted on: 13 September 2015.
Revised on: 24 October 2015.
Accepted on: 16 November 2015.
___________________Journal of Nonlinear and Variational Analysis
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Submitted on: 22 November 2003.
Revised on: 16 December 2003.
Accepted on: 29 December 2003.
___________________Journal of Nonlinear and Variational Analysis
Submitted on: 04 May 2019.
Revised on: 19 June 2019.
Accepted on: 29 June 2019.
___________________Journal of Nonlinear and Variational Analysis
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Submitted on: 17 July 2004.
Revised on: 14 September 2004.
Accepted on: 14 October 2004.
___________________Journal of Nonlinear and Variational Analysis
Submitted on: 07 October 2023.
Revised on: 20 December 2023.
Accepted on: 12 February 2024.
___________________Journal of Nonlinear and Variational Analysis