建立了强不定泛函关于动态孤立临界集的抽象 Morse 理论:建立了具有一般非线性项的多重调和方程及方程组的 Liouville 定理 ; 利用 Riemannn 几何方法研究了一类具有变系数弹性系统的边界镇定性问题;利用 Schmite 约化方法结合 Pohozaev 恒等式研究一类临界非线性问题非径向解的存在性,集中性, 唯一性和对称性等;利用变分方法结合正则性扰动方法研究一般拟线性方程解的存在性,多解性及渐进形态等
[1] Yuxia Guo, M.Musso, S.Peng and S.Yan, Non-degeneracy of multiple bubble solutions for prescribed curvature problem and applications, JFA, 2020
[2] Daomin Cao, Yuxia Guo, Shuangjie Peng and Shusen Yan, Uniqueness of planar vortex patch in incompressible stead flow, JMPA, 2019,.
[3] Yuxia Guo, B. Li, J. Wei, Entire nonradial solutions for non-cooperative coupled elliptic system with critical exponents in $\mathbb{R}^3$, JDE, 2014, 256(2014), 3463-3495
[4] Yuxia Guo,Libo, Infinitely many solutions for the prescribed curvature problem of polyharmonic opetrator, Car. Var. PDEs,(2013), 46:809-836
[5] Yuxia Guo, Nontrivial solutions for resonant noncooperative elliptic systems, Comm. Pure Appl. Math., 2000(53), no. 11, pp. 1335-1349