Xin Xu

collaborators

2 papers

math.SP2026

The inverse eigenvalue problems for perturbed Bessel operator with mixed data

Zeguang Liu, Xin-Jian Xu

We consider inverse eigenvalue problems for the perturbed Bessel operator in $L^{2} (0, 1)$ . (1) For the case where the angular-momentum quantum number $ℓ \in N \cup {0}$ ,…

math.AP2025

Non-convergence of the principal eigenvalue of elliptic operators for large advection

Xueli Bai, Zhi-An Wang, Xin Xu +2

This paper investigates the limit of the principal eigenvalue $I^» (s)$ as $s \to + \infty$ for the following elliptic equation \begin{align*} -ÎÏ(x)-2s\mathbf{v}\cdot\nablaÏ(x)+c(x)…