Submitted on: 30 April 2012.
Revised on: 25 May 2012.
Accepted on: 21 June 2012.
Trudy Instituta Matematiki i Mekhaniki UrO RAN
Submitted on: 10 May 2000.
Revised on: 17 June 2000.
Accepted on: 12 July 2000.
Trudy Instituta Matematiki i Mekhaniki UrO RAN
Submitted on: 12 May 1999.
Revised on: 21 May 1999.
Accepted on: 17 June 1999.
Trudy Instituta Matematiki i Mekhaniki UrO RAN
Submitted on: 20 February 2012.
Revised on: 30 March 2012.
Accepted on: 18 April 2012.
Trudy Instituta Matematiki i Mekhaniki UrO RAN
http://reply.papertrans.cn/3/300/29994/29994-15.png
http://reply.papertrans.cn/3/300/29994/29994-16.png
Submitted on: 03 May 2000.
Revised on: 22 May 2000.
Accepted on: 04 June 2000.
Trudy Instituta Matematiki i Mekhaniki UrO RAN
http://reply.papertrans.cn/3/300/29994/29994-18.png
http://reply.papertrans.cn/3/300/29994/29994-19.png
http://reply.papertrans.cn/3/300/29994/29994-20.png