Volume 298, Issue 1 pp. 282-311
ORIGINAL ARTICLE

The first eigenvalue of one-dimensional elliptic operators with killing

Kang Dai

Corresponding Author

Kang Dai

School of Mathematics and Statistics, Jiangsu Normal University, Xuzhou, China

Correspondence

Kang Dai, School of Mathematics and Statistics, Jiangsu Normal University, 221116 Xuzhou, China.

Email: [email protected]

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Xiaobin Sun

Xiaobin Sun

Research Institute of Mathematical Science, Jiangsu Normal University, Xuzhou, China

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Jian Wang

Jian Wang

School of Mathematics and Statistics, Fujian Normal University, Fuzhou, China

Key Laboratory of Analytical Mathematics and Applications (Ministry of Education), Fujian Normal University, Fuzhou, China

Fujian Provincial Key Laboratory of Statistics and Artificial Intelligence, Fujian Normal University, Fuzhou, China

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Yingchao Xie

Yingchao Xie

Research Institute of Mathematical Science, Jiangsu Normal University, Xuzhou, China

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First published: 27 November 2024

Abstract

In this paper, we investigate the first eigenvalue for one-dimensional elliptic operators with killing. Two-sided approximation procedures and basic estimates of the first eigenvalue are given in both the half line and the whole line. The proofs are based on the h $h$ -transform, Chen's dual variational formulas, and the split technique. In particular, a few examples are presented to illustrate the power of our results.

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