Equivalence Relations and Distances between Hilbert Frames

نویسندگان

  • RADU BALAN
  • David R. Larson
چکیده

We study some equivalency relations between Hilbert frames and closed subspaces of l2(I). We define also a distance between frames and we establish the geometric meaning of this metric. Finally we find the closest and respectively the nearest tight frame to a given frame.

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تاریخ انتشار 1999