Geodesic
Summation rational operators of the Jackson type
Matematičeskie zametki, Tome 61 (1997) no. 2, pp. 270-277 
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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     author = {E. A. Rovba},
     title = {Summation rational operators of the {Jackson} type},
     journal = {Matemati\v{c}eskie zametki},
     pages = {270--277},
     year = {1997},
     volume = {61},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1997_61_2_a8/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

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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