24 August 2017 A brief introduction to equi-chordal and equi-isoclinic tight fusion frames
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Abstract
Equi-chordal and equi-isoclinic tight fusion frames (ECTFFs and EITFFs) are both types of optimal packings of subspaces in Euclidean spaces. In the special case where these subspaces are one-dimensional, ECTFFs and EITFFs both correspond to types of optimal packings of lines known as equiangular tight frames. In this brief note, we review some of the fundamental ideas and results concerning ECTFFs and EITFFs.
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Matthew Fickus, John Jasper, Dustin G. Mixon, Cody E. Watson, "A brief introduction to equi-chordal and equi-isoclinic tight fusion frames", Proc. SPIE 10394, Wavelets and Sparsity XVII, 103940T (24 August 2017); doi: 10.1117/12.2270953; https://doi.org/10.1117/12.2270953
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