References
- Bojanić, R. (1979). An estimate of the rate of convergence for Fourier series of functions of bounded variation. Publ. de ’Inst. Math. Nouvelle Serie 26(40):57–60.
- Bojanić, R., Mazhar, S. M. (1980). An estimate of the rate of convergence of the Nörlund-Voronoi means of the Fourier series of functions of bounded variation. In: E. W. Cheney (Ed.), Approximation Theory, III (Proc. Conf., Univ. Texas, Austin, Tex., 1980). New York, London: Academic Press, pp. 243–248.
- Mazhar, S. M. (1982). An estimate of the rate of convergence of the triangular matrix means of the Fourier series of functions of bounded variation. Collect. Math. 33(2):187–193.
- Bojanić, R., Mazhar, S. M. (1985). An estimate of the rate of convergence of Cesàro means of Fourier series of functions of bounded variation. Presented at the Proceedings of the Conference on Mathematical Analysis and Its Applications, Kuwait. Oxford: Pergamon Press, pp. 17–22.
- Kuang, J. C. (1985). Pointwise approximation of Féjer operators in BV spaces (Chinese). J. Hunan Normal Univ. (NS) 8(4):1–4.
- Xiong, J., Cao, F. (1987). Pointwise approximation of Cesàro means of Fourier series for functions of bounded variation (Chinese). J. Ningxia Univ. (NS) 4:1–8.
- Xiong, J., Cao, F. (1990). Pointwise approximation of the Euler means of Jackson-Matsuoka operators in BV2π spaces (Chinese). J. Inner Mongolia Teach. Univ. (NS) 1:1–10.
- Xue, Y., Hou, X. (1992). An estimate of the rate of convergence of the Vallée-Poussin means of Fourier series of functions of bounded variation (Chinese). J. Yantai Univ. (NSE). 1–2:20–24.
- Bustamante, J., García-Muñoz, M., Quesada, J. M. (2014). Bernstein polynomial and discontinuous functions. J. Math. Anal. Appl. 411(2):829–837. DOI: 10.1016/j.jmaa.2013.10.024.
- Butzer, P. L., Nessel, R. J. (1971). Fourier Analysis and Approximation. New York and London: Academic Press.
- Butzer, P. L., Stark, E. L. (1969). Wesentliche asymtotische Entwicklungen für Approximationsmaße trigonometrischer singulärer Integrale (in German). Math. Nachr. 39(4–6):223–237. DOI: 10.1002/mana.19690390404.
- Sz. Nagy, B. (1948). Sur una clase générale de procédés de summation pour les séries de Fourier (in French). Acta Math. Hung. 1:14–52.
- Yang, R., Xiong, J. (1985). Pointwise estimates for the approximation order of functions of bounded variation by NV means of Jackson-Matsuoka operators. J. Ningxia Univ. (NSE) 2:60–68.