Submitted on: 02 October 1999.
Revised on: 04 December 1999.
Accepted on: 01 January 2000.
___________________Journal of Spectral Theory---EUROPEAN MATHEMATICAL SOC-EMS
http://reply.papertrans.cn/2/194/19367/19367-22.png
http://reply.papertrans.cn/2/194/19367/19367-23.png
Submitted on: 10 January 2024.
Revised on: 03 March 2024.
Accepted on: 01 May 2024.
___________________Journal of Spectral Theory---EUROPEAN MATHEMATICAL SOC-EMS
Submitted on: 01 August 2016.
Revised on: 21 September 2016.
Accepted on: 24 October 2016.
___________________Journal of Spectral Theory---EUROPEAN MATHEMATICAL SOC-EMS
http://reply.papertrans.cn/2/194/19367/19367-26.png
http://reply.papertrans.cn/2/194/19367/19367-27.png
http://reply.papertrans.cn/2/194/19367/19367-28.png
Submitted on: 15 November 2003.
Revised on: 06 December 2003.
Accepted on: 01 January 2004.
___________________Journal of Spectral Theory---EUROPEAN MATHEMATICAL SOC-EMS
Submitted on: 05 July 2006.
Revised on: 24 September 2006.
Accepted on: 22 October 2006.
___________________Journal of Spectral Theory---EUROPEAN MATHEMATICAL SOC-EMS