Geodesic
Summation rational operators of the Jackson type
Matematičeskie zametki, Tome 61 (1997) no. 2, pp. 270-277.

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Summation rational positive operators $D_{4n-n}(x;f)$ of the Jackson type are constructed on the real axis. The corresponding approximations of continuous functions $f$ on $\mathbb R$ with coinciding finite limits $\lim_{x\to-\infty}f(x)$ and $\lim_{x\to+\infty}f(x)$ are estimated. 
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     title = {Summation rational operators of the {Jackson} type},
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E. A. Rovba. Summation rational operators of the Jackson type. Matematičeskie zametki, Tome 61 (1997) no. 2, pp. 270-277. http://geodesic.mathdoc.fr/item/MZM_1997_61_2_a8/

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