Submitted on: 07 January 1998.
Revised on: 02 April 1998.
Accepted on: 08 May 1998.
___________________Journal of Mathematical Fluid Mechanics
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Submitted on: 08 April 2024.
Revised on: 20 May 2024.
Accepted on: 19 July 2024.
___________________Journal of Mathematical Fluid Mechanics
Submitted on: 02 October 2008.
Revised on: 11 December 2008.
Accepted on: 08 January 2009.
___________________Journal of Mathematical Fluid Mechanics
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