TY - JOUR
T1 - Rigidity of Homogeneous Holomorphic S2 in a Complex Grassmann Manifold G(2, N)
AU - Fei, Jie
AU - He, Ling
AU - Wang, Jun
N1 - Funding Information:
The authors would like to express gratitude for the referee’s valuable comments and suggestions. This work was supported by National Key R &D Program of China (Grant No. 2022YFA1006600) and NSFC (Grant Nos. 11401481, 12071338, 12071352, 11301273, 11971237). The first named author was also supported by the Research Enhancement Fund of Xi’an Jiaotong-Liverpool University (REF-18-01-03). The third named author was also supported by the Natural Science Foundation of Jiangsu Province (Grant No. BK20221320).
Publisher Copyright:
© 2023, Mathematica Josephina, Inc.
PY - 2023/10
Y1 - 2023/10
N2 - In this paper, we give a local rigid characterization of all homogeneous holomorphic two-spheres in a complex Grassmann manifold G(2, N). Let κ denote the new global invariant defined in terms of the square norm of (1, 0) part of the second-order covariant differential of the first ∂ -transform for a holomorphic curve in G(2, N). It is proved that a linearly full non-degenerate holomorphic curve of constant curvature and constant square norm of the second fundamental form in G(2, N) with κ= 0 must be homogeneous.
AB - In this paper, we give a local rigid characterization of all homogeneous holomorphic two-spheres in a complex Grassmann manifold G(2, N). Let κ denote the new global invariant defined in terms of the square norm of (1, 0) part of the second-order covariant differential of the first ∂ -transform for a holomorphic curve in G(2, N). It is proved that a linearly full non-degenerate holomorphic curve of constant curvature and constant square norm of the second fundamental form in G(2, N) with κ= 0 must be homogeneous.
KW - Complex Grassmann manifolds
KW - Gaussian curvature
KW - Holomorphic curves
KW - Rigidity
KW - The second fundamental form
UR - http://www.scopus.com/inward/record.url?scp=85166006371&partnerID=8YFLogxK
U2 - 10.1007/s12220-023-01387-7
DO - 10.1007/s12220-023-01387-7
M3 - Article
AN - SCOPUS:85166006371
SN - 1050-6926
VL - 33
JO - Journal of Geometric Analysis
JF - Journal of Geometric Analysis
IS - 10
M1 - 324
ER -