3 papers
math.AP2026
Volume-dependent geometry and symmetry transitions of torsion optimizers in infinite cylinders
Xiuda Liang, Wenjie Wang
We study relative torsional rigidity in infinite cylinders, addressing two geometric questions raised by Caldiroli, Iacopetti and Pacella on the shape of volume-constrained optimiz…
math.AP2026
Transformed Convexity for Lane--Emden Equations and Torsion on Spherical Domains
Xiuda Liang, Wenjie Wang
We study the geometry of positive Dirichlet solutions on smooth, uniformly geodesically convex domains , . Set . For the Lane--Emden…
math.AP2026
Hessian degeneracy of the torsion function on smooth simply connected nonconvex planar domains
Xiuda Liang, Peng Luo, Wenjie Wang
We construct a family of bounded, smooth, simply connected, nonconvex planar domains . Let be the corresponding torsion function satisfying \[ -Δu_{a,ε}=1\quad\t…