@article{Bitsadze_2023, title={On the sets of divergence of multiple Fourier–Haar series}, volume={74}, url={https://umj.imath.kiev.ua/index.php/umj/article/view/6886}, DOI={10.37863/umzh.v74i12.6886}, abstractNote={<p>UDC 517.518.45</p> <p>It is shown that every at most countable set $F$ in an $n$-dimensional unit cube $[0,1]^n$ is a set of divergence of the $n$-fold Fourier–Haar series of a certain limited dimensional function, i.e., there exists a bounded dimensional function defined on $[0,1]^n$ whose $n$-fold Fourier–Haar series converges in Pringsheim’s sense on $[0,1]^n\backslash F$ and diverges on the cubes on $F.$</p&gt;}, number={12}, journal={Ukrains’kyi Matematychnyi Zhurnal}, author={Bitsadze, K. R.}, year={2023}, month={Jan.}, pages={1625 - 1639} }