Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

The Sums of a Pair of Orthogonal Frames

Version 1 : Received: 9 May 2019 / Approved: 10 May 2019 / Online: 10 May 2019 (14:47:17 CEST)
Version 2 : Received: 30 June 2019 / Approved: 3 July 2019 / Online: 3 July 2019 (09:57:52 CEST)

A peer-reviewed article of this Preprint also exists.

Bhatt, G. Sums of A Pair of Orthogonal Frames. Mathematics 2019, 7, 582. Bhatt, G. Sums of A Pair of Orthogonal Frames. Mathematics 2019, 7, 582.


A sum of different frames under the action of a bounded linear operator is studied with the help of analysis, synthesis and frame operators. In particular, it is shown that the sum of a pair of orthogonal frames is a frame. This provides an easy construction of a frame where the frame bounds can be computed easily. For a pair of orthogonal frames, the necessary and sufficient condition is presented for their alternate duals to be orthogonal.


Frames; Orthogonal frames; Canonical dual; Alternate dual


Computer Science and Mathematics, Analysis

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