Abstract:
We prove that, for every $\varepsilon\in (0,1)$, there is a measurable set $E\subset[0,1]$ whose measure $|E|$ satisfies the estimate $|E|>1-\varepsilon$ and, for every function $f\in C_{[0,1]}$, there is $\tilde f\in C_{[0,1]}$ coinciding with $f$ on $E$ whose expansion n the Faber–Schauder system diverges in measure after a rearrangement.
Keywords:
uniform convergence, Faber–Schauder system, convergence in measure.
Citation:
M. G. Grigoryan, A. A. Sargsyan, “The Fourier–Faber–Schauder series unconditionally divergent in measure”, Sibirsk. Mat. Zh., 59:5 (2018), 1057–1065; Siberian Math. J., 59:5 (2018), 835–842
This publication is cited in the following 2 articles:
T. M. Grigoryan, A. A. Maranjyan, “On the unconditional convergence of Faber–Schauder series in $L^{1}$”, Uch. zapiski EGU, ser. Fizika i Matematika, 55:1 (2021), 12–19
Nikolaj Mormul`, Alexander Shchitov, “A study of approximation of functions of bounded variation by Faber-Schauder partial sums”, EEJET, 4:4 (100) (2019), 14