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JOURNALS // Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika // Archive

Izv. Vyssh. Uchebn. Zaved. Mat., 2025 Number 11, Pages 48–69 (Mi ivm10136)

Estimation of the remainder term in the expansion of the stable law for extreme values of the asymmetry parameter

V. V. Saenko

Ulyanovsk State University 42 L. Tolstoy str., Ulyanovsk, 432017 Russia

Abstract: The paper examines the expansion of the strictly stable law for $x\to0$ and $x\to\infty$ in the case of extreme values of the asymmetry parameter. Asymptotic expansions of the probability density and distribution functions are obtained, as well as estimates of the residual terms of these expansions. Based on the obtained estimates of the residual terms, a criterion is presented that allows determining the coordinate region within which it is possible to use these asymptotic expansions. The presented calculations confirm the validity of the obtained expressions.

Keywords: stable law, expansion of stable law, probability density, distribution function, Laplace method, asymptotic expansion, Bell polynomial.

UDC: 519.213

Received: 18.07.2024
Revised: 18.07.2024
Accepted: 18.12.2024

DOI: 10.26907/0021-3446-2025-11-48-69



© Steklov Math. Inst. of RAS, 2026