Geodesic
On approximation with given accuracy of functions of $k$-valued logic by polynomials
Diskretnaya Matematika, Tome 20 (2008) no. 2, pp. 32-45

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We consider approximations of functions of $k$-valued logic by polynomials with various accuracies and find estimates of the ranks and the lengths of the approximating polynomials depending of the accuracy of approximation. 
@article{DM_2008_20_2_a3,
     author = {S. N. Selezneva},
     title = {On approximation with given accuracy of functions of $k$-valued logic by polynomials},
     journal = {Diskretnaya Matematika},
     pages = {32--45},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2008_20_2_a3/}
}
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S. N. Selezneva. On approximation with given accuracy of functions of $k$-valued logic by polynomials. Diskretnaya Matematika, Tome 20 (2008) no. 2, pp. 32-45. http://geodesic.mathdoc.fr/item/DM_2008_20_2_a3/