TY - BOOK AU - DeVore,Ronald A. TI - The approximation of continuous functions by positive linear operators SN - 0387060383 (pbk) : U1 - 510.82 PY - 1972/// CY - Berlin PB - Springer-Verlag KW - Approximation theory KW - Functions, Continuous KW - Linear operators KW - Positive operators N1 - Bibliography : p. 278-289 ER -