Geodesic
Permissible values of coefficients of polynomials in uniform approximation of continuous functions
Matematičeskie zametki, Tome 6 (1969) no. 5, pp. 619-625.

Voir la notice de l'article provenant de la source Math-Net.Ru

Known approximation theorems of Weierstrass and Lavrent'ev are extended by determining allowable bounds on the values of the coefficients of the approximating polynomials. 
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     author = {S. Ya. Khavinson},
     title = {Permissible values of coefficients of polynomials in uniform approximation of continuous functions},
     journal = {Matemati\v{c}eskie zametki},
     pages = {619--625},
     publisher = {mathdoc},
     volume = {6},
     number = {5},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1969_6_5_a12/}
}
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S. Ya. Khavinson. Permissible values of coefficients of polynomials in uniform approximation of continuous functions. Matematičeskie zametki, Tome 6 (1969) no. 5, pp. 619-625. http://geodesic.mathdoc.fr/item/MZM_1969_6_5_a12/