Submitted on: 12 July 2009.
Revised on: 31 August 2009.
Accepted on: 15 September 2009.
___________________Advances in Operator Theory---SPRINGER BASEL AG
http://reply.papertrans.cn/1/8/794/794-32.png
Submitted on: 25 December 2002.
Revised on: 17 February 2003.
Accepted on: 29 March 2003.
___________________Advances in Operator Theory---SPRINGER BASEL AG
Submitted on: 11 December 2010.
Revised on: 29 January 2011.
Accepted on: 29 March 2011.
___________________Advances in Operator Theory---SPRINGER BASEL AG
Submitted on: 02 May 2016.
Revised on: 25 July 2016.
Accepted on: 14 August 2016.
___________________Advances in Operator Theory---SPRINGER BASEL AG
Submitted on: 09 April 2014.
Revised on: 27 May 2014.
Accepted on: 15 July 2014.
___________________Advances in Operator Theory---SPRINGER BASEL AG