Submitted on: 06 March 2017.
Revised on: 04 April 2017.
Accepted on: 10 April 2017.
Miskolc Mathematical Notes---UNIV MISKOLC INST MATH
http://reply.papertrans.cn/3/221/22092/22092-12.png
http://reply.papertrans.cn/3/221/22092/22092-13.png
Submitted on: 31 March 2003.
Revised on: 24 April 2003.
Accepted on: 16 May 2003.
Miskolc Mathematical Notes---UNIV MISKOLC INST MATH
Submitted on: 20 July 2019.
Revised on: 27 August 2019.
Accepted on: 02 September 2019.
Miskolc Mathematical Notes
http://reply.papertrans.cn/3/221/22092/22092-16.png
Submitted on: 29 April 2016.
Revised on: 27 May 2016.
Accepted on: 19 June 2016.
Miskolc Mathematical Notes
http://reply.papertrans.cn/3/221/22092/22092-18.png
http://reply.papertrans.cn/3/221/22092/22092-19.png
Submitted on: 28 May 2016.
Revised on: 26 June 2016.
Accepted on: 04 July 2016.
Miskolc Mathematical Notes