Rigidity of equivariant harmonic maps from the sphere into Grassmannians
We prove the rigidity results for G -equivariant harmonic maps of the sphere S m into real or complex Grassmannians of low rank for G = SO ( m + 1 ) , Spin ( m + 1 ) , G 2 (when m = 6 ) and Spin ( 7 ) (when m = 7 ).
Authors
- Masaro Takahashi
- Isami Koga
- Yasuyuki Nagatomo (ORCID: https://orcid.org/0000-0002-4537-9013)
Institutions
- Meiji University (JP)
- National Institute of Technology, Kurume College (JP)
- Kyushu International University (JP)
Publication Details
- Journal
- Differential Geometry and its Applications
- Published
- 2026-06-09
- DOI
- https://doi.org/10.1016/j.difgeo.2026.102403
- Primary Topic
- Geometric Analysis and Curvature Flows
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Japan Society for the Promotion of Science