|
Local tail asymptotics for the joint distribution of the length and of the maximum of a random walk excursion
E. Perfileva, V. Wañhtelb a Institut für Mathematik, Universität Augsburg, Augsburg, Germany
b Fakultät für Mathematik, Universität Bielefeld, Bielefeld, Germany
Abstract:
This note is devoted to the study of the maximum of the excursion of a random
walk with negative drift and light-tailed increments. More precisely, we
determine the local asymptotics of the joint distribution of the length,
the maximum, and the time at which this maximum is achieved. This result allows
one to obtain a local central limit theorem for the length of the excursion
conditioned on large values of the maximum.
Keywords:
random walk, excursion, Cramér–Lundberg, exponential change of measure.
Received: 16.08.2020 Revised: 12.01.2022 Accepted: 17.01.2022
Citation:
E. Perfilev, V. Wañhtel, “Local tail asymptotics for the joint distribution of the length and of the maximum of a random walk excursion”, Teor. Veroyatnost. i Primenen., 67:2 (2022), 365–383; Theory Probab. Appl., 67:2 (2022), 294–309
Linking options:
https://www.mathnet.ru/eng/tvp5430https://doi.org/10.4213/tvp5430 https://www.mathnet.ru/eng/tvp/v67/i2/p365
|
Statistics & downloads: |
Abstract page: | 126 | Full-text PDF : | 13 | References: | 18 | First page: | 10 |
|