On ∂b-Harmonic Maps from Pseudo-Hermitian Manifolds to Kähler Manifolds

Citation:

Yuxin DONG,Hui LIU,Biqiang ZHAO.On ∂b-Harmonic Maps from Pseudo-Hermitian Manifolds to Kähler Manifolds[J].Chinese Annals of Mathematics B,2026,(1):229~250
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Authors:

Yuxin DONG; Hui LIU;Biqiang ZHAO

Foundation:

the National Natural Science Foundation of China (No. 12171091) and the China Scholarship Council (No. 202306100156)
Abstract: The authors introduce the notion of ??b-harmonic maps from strictly pseudoconvex CR manifolds to K?hler manifolds. They derive the Euler–Lagrange equation and establish a Bochner-type formula. Under curvature assumptions on both domain and target, they prove Liouville-type theorems and rigidity results. The work bridges CR geometry and harmonic map theory in the sub-Riemannian setting.

Keywords:

Pseudo-Hermitian manifold  ∂b-Harmonic maps  Foliated CR map

Classification:

53C25, 58E20
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