Submitted on: 19 May 2024.
Revised on: 05 August 2024.
Accepted on: 25 August 2024.
___________________ACTA MATHEMATICA HUNGARICA---SPRINGER
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Submitted on: 25 June 2005.
Revised on: 22 October 2005.
Accepted on: 11 November 2005.
___________________ACTA MATHEMATICA HUNGARICA---SPRINGER
Submitted on: 26 November 2013.
Revised on: 04 January 2014.
Accepted on: 18 February 2014.
___________________ACTA MATHEMATICA HUNGARICA---SPRINGER
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Submitted on: 30 November 2022.
Revised on: 01 January 2023.
Accepted on: 01 February 2023.
___________________ACTA MATHEMATICA HUNGARICA---SPRINGER
Submitted on: 18 February 2008.
Revised on: 29 March 2008.
Accepted on: 13 April 2008.
___________________ACTA MATHEMATICA HUNGARICA---SPRINGER
Submitted on: 25 June 2018.
Revised on: 02 October 2018.
Accepted on: 26 October 2018.
___________________ACTA MATHEMATICA HUNGARICA---SPRINGER
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