Research output: Contribution to journal › Article › peer-review
SHARP ESTIMATE OF APPROXIMATION FOR THE CARDINAL SCHOENBERG OPERATOR. / Ikhsanov, L.
In: Journal of Mathematical Sciences (Series A), 06.02.2026.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - SHARP ESTIMATE OF APPROXIMATION FOR THE CARDINAL SCHOENBERG OPERATOR
AU - Ikhsanov, L.
N1 - Export Date: 16 February 2026; Cited By: 0; Correspondence Address: L. Ikhsanov; Saint Petersburg State University, Saint Petersburg, Russian Federation; email: lv.ikhs@gmail.com
PY - 2026/2/6
Y1 - 2026/2/6
N2 - We obtain the following estimate. Let Mp be the cardinal B-spline. Then, for every locally bounded function f (Formula presented.) This result is sharp for every irrational number x, and the order of the step is optimal. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2026.
AB - We obtain the following estimate. Let Mp be the cardinal B-spline. Then, for every locally bounded function f (Formula presented.) This result is sharp for every irrational number x, and the order of the step is optimal. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2026.
KW - Quasi-projectors
KW - Schoenberg operator
KW - Second modulus of continuity
KW - Spline approximation
UR - https://www.mendeley.com/catalogue/2c973c8d-06b4-3feb-bd28-5379257a405a/
U2 - 10.1007/s10958-026-08185-w
DO - 10.1007/s10958-026-08185-w
M3 - статья
JO - Journal of Mathematical Sciences
JF - Journal of Mathematical Sciences
SN - 1072-3374
ER -
ID: 148771233