摘要
本文主要讨论了赋β范空间的单位球面的2-等距扩张问题,及赋β-范空间单位球之间的算子V0:Br (E)→Br(E)是2-等距的充要条件‖V0‖≥‖x‖。
In this paper, the extension of 2-isometries between the unit ball (or spheres)of β-normed spaces is discussed. The sufficient and necessary condition of an operator V0:Br(E)→Br(E)is a 2-isornetry is given, i
e,‖V0x‖≥‖x‖
出处
《南开大学学报（自然科学版）》
CAS
CSCD
北大核心
2003年第4期28-30,37,共4页
Acta Scientiarum Naturalium Universitatis Nankaiensis
基金
Supported by NSFC(10271060)
the doctor program fanndation of institution lf high education(20010055013)
foundation of TEC(20031411)
