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JOURNALS // Izvestiya of Saratov University. Mathematics. Mechanics. Informatics // Archive

Izv. Saratov Univ. Math. Mech. Inform., 2025 Volume 25, Issue 2, Pages 184–188 (Mi isu1075)

This article is cited in 1 paper

Scientific Part
Mathematics

Discontinuous Steklov operator and approximate polynomial splines

G. V. Khromova

Saratov State University, 83 Astrakhanskaya St., Saratov 410012, Russia

Abstract: For a continuous function specified on a uniform grid of the segment [0,1], a method for constructing approximation polynomial splines is presented. This method does not require any additional information about the function and ensures uniform convergence. This convergence also occurs for an approximately given grid function. In the case of a parabolic spline, the article provides formulas ready for direct use.

Key words: Steklov operator, broken line, continuous function, uniform mesh, uniform approximations, spline.

UDC: 517.51

Received: 06.05.2024
Revised: 11.12.2024

DOI: 10.18500/1816-9791-2025-25-2-184-188



© Steklov Math. Inst. of RAS, 2026