MUKHWANA, M. K., OTIENO, R. O., GEORGE, O. O., JOSEPH, M. K. and OKELO, N. B. (2015) “ON CHEBYSHEV’S POLYNOMIALS OF NON-SMOOTH FUNCTIONAL AND ITS NONPARAMETRIC ESTIMATION”, IJRDO -JOURNAL OF MATHEMATICS, 1(2), pp. 26-32. doi: 10.53555/m.v1i2.2407.