@Article{JCM-1-223,
author = {Yu-Yu Feng and Dong-Xu Qi},
title = {On the Haar and Walsh Systems on a Triangle},
journal = {Journal of Computational Mathematics},
year = {1983},
volume = {1},
number = {3},
pages = {223--232},
abstract = {<p style="text-align: justify;">In this paper we establish the Haar and Walsh systems on a triangle. These systems are complete in $L_2(\Delta)$. The uniform convergence of the Haar-Fourier series and the uniform convergence by group of the Walsh-Fourier series for any continuous function are proved. &nbsp;</p>},
issn = {1991-7139},
doi = {https://doi.org/},
url = {http://global-sci.org/intro/article_detail/jcm/9698.html}
}