Geodesic
On Polynomials of Best Approximation
Matematičeskie zametki, Tome 82 (2007) no. 4, pp. 631-636 Cet article a éte moissonné depuis la source Math-Net.Ru

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In the space of continuous functions defined on the ball from $\mathbb R^n$, $n\ge2$, we study the set of algebraic polynomials of least deviation from zero. Its width and dimension are estimated.
Keywords: algebraic polynomial of least deviation from zero, Chebyshev polynomial, trigonometric polynomial
Mots-clés : Bézout theorem, orthogonal transformation. 
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V. A. Yudin. On Polynomials of Best Approximation. Matematičeskie zametki, Tome 82 (2007) no. 4, pp. 631-636. http://geodesic.mathdoc.fr/item/MZM_2007_82_4_a17/

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