Geodesic
On $n$-Term Approximations with Respect to Frames Bounded in $L^p(0,1)$, $2$
Matematičeskie zametki, Tome 95 (2014) no. 6, pp. 830-835.

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In this paper, best canonical $n$-term approximations in the norm of the spaces $L^2(0,1)$ of the family $\mathbb I$ of characteristic functions of intervals are studied.
Keywords: best canonical $n$-term approximation, tight frame, Haar system, Bessel's inequality, Rademacher function, Khinchine's inequality. 
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B. S. Kashin; A. V. Meleshkina. On $n$-Term Approximations with Respect to Frames Bounded in $L^p(0,1)$, $2

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