@article{oai:soar-ir.repo.nii.ac.jp:00013047, author = {OKUYAMA, Yasuo}, journal = {信州大学工学部紀要}, month = {Jul}, note = {The object of this note is to prove that the extension of Szasz's theorem (1) on the absolute convergence of Fourier series also holds for the Walsh Fourier series, and we consider some applications for the theorem., Article, 信州大学工学部紀要 26: 9-15 (1969)}, pages = {9--15}, title = {On the absolute convergence of Walsh Fourier series}, volume = {26}, year = {1969} }