Geodesic
On the Coincidence of Pure Greedy and Best $m$-Term Approximations
Matematičeskie zametki, Tome 111 (2022) no. 2, pp. 202-210.

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We obtain conditions on a dictionary in a Hilbert space that are necessary or sufficient for the coincidence of pure greedy and best $m$-term approximations.
Keywords: greedy approximation, $m$-term approximation, coherence parameter, Hilbert space. 
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K. S. Vishnevetskiy. On the Coincidence of Pure Greedy and Best $m$-Term Approximations. Matematičeskie zametki, Tome 111 (2022) no. 2, pp. 202-210. http://geodesic.mathdoc.fr/item/MZM_2022_111_2_a2/

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