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Submitted on: 16 August 2021.
Revised on: 17 November 2021.
Accepted on: 09 January 2022.
___________________ANNALI DI MATEMATICA PURA ED APPLICATA
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Submitted on: 07 October 2007.
Revised on: 17 January 2008.
Accepted on: 03 March 2008.
___________________ANNALI DI MATEMATICA PURA ED APPLICATA
Submitted on: 05 April 2006.
Revised on: 02 July 2006.
Accepted on: 29 July 2006.
___________________ANNALI DI MATEMATICA PURA ED APPLICATA
Submitted on: 02 February 2001.
Revised on: 02 April 2001.
Accepted on: 05 May 2001.
___________________ANNALI DI MATEMATICA PURA ED APPLICATA
Submitted on: 19 April 2017.
Revised on: 11 August 2017.
Accepted on: 11 September 2017.
___________________ANNALI DI MATEMATICA PURA ED APPLICATA
Submitted on: 24 September 2011.
Revised on: 16 November 2011.
Accepted on: 09 December 2011.
___________________ANNALI DI MATEMATICA PURA ED APPLICATA