研究有限维Hilbert空间上的椭圆框架,给出了对偶椭圆框架的刻画,并得到了两个椭圆框架之和何时仍是一个椭圆框架的条件.
This research focus on ellipsoidal frames in finite dimensional Hilbert spaces. The charac- terization of dual ellipsoidal frame is given and the conditions on when the sum of two ellipsoidal frames is still a ellipsoidal frame are presented.