Polynomial and special function theory remains a vibrant area of mathematical research, interweaving classical algebra with advanced analysis. At its core, the study concerns algebraic expressions ...

The conditional variance function in a heteroscedastic, nonparametric regression model is estimated by linear smoothing of squared residuals. Attention is focused on local polynomial smoothers.

The amount of time it takes for an algorithm to solve a polynomial function, which is a mathematical expression that does not contain fractions or negative numbers. The time is proportional to the ...

Properties of the Lebesgue function associated with interpolation at the Chebyshev nodes $\ {\operatorname {\cos}\lbrack (2k - 1)\pi/ (2n)\rbrack, k = 1,2, \cdots, n\}$ are studied. It is proved that ...