activity
19982026
most citedMinimal surfaces in pseudohermitian geometry

39 citations · 95 across the 38 of their papers we have counts for

collaborators

38 papers

math.DG2026

Positive mass theorem and the Yamabe equation on CR manifolds

Jih-Hsin Cheng

Our goal is to survey the development of positive mass theorem and the Yamabe equation on CR manifolds in recent years. We introduce the notion of the mass in several complex varia…

math.DG2025

On minimizing surfaces of the CR invariant energy

Jih-Hsin Cheng, Hung-Lin Chiu, Paul Yang +1

We study a CR-invariant equation for vanishing surfaces in the 3-dimensional Heisenberg group. This is shown to be a hyperbolic equation. We prove the local uniqueness theore…

math.DG2025

Spectral bundles on Abelian varieties, complex projective spaces and Grassmannians

Ching-Hao Chang, Jih-Hsin Cheng, I-Hsun Tsai

In this paper we study the spectral analysis of Bochner-Kodaira Laplacians on an Abelian variety, complex projective space and a Grassmannian with a holomorphic li…

math.DG2024

Heat kernel and local index theorem for open complex manifolds with -action

Jih-Hsin Cheng, Chin-Yu Hsiao, I-Hsun Tsai

For a complex manifold with -action, we define the -th Fourier-Dolbeault cohomology group and consider the -index on . By appl…

math.DG2023

A characterization of homogeneous three-dimensional CR manifolds

Jih-Hsin Cheng, Andrea Malchiodi, Paul Yang

We characterize homogeneous three-dimensional CR manifolds, in particular Rossi spheres, as critical points of a certain energy functional that depends on the Webster curvature and…

math.DG2023

On the variation of the Einstein-Hilbert action in pseudohermitian geometry

Claudio Afeltra, Jih-Hsin Cheng, Andrea Malchiodi +1

In this paper we compute the first and second variation of the normalized Einstein-Hilbert functional on CR manifolds. We characterize critical points as pseudo-Einstein structures…