June 2024 Derivatives of structure Jacobi operator on real hypersurfaces in complex Grassmannians of rank two
Gyu Jong KIM, Hyunjin LEE, Eunmi PAK
Author Affiliations +
Hokkaido Math. J. 53(2): 247-283 (June 2024). DOI: 10.14492/hokmj/2022-656

Abstract

We introduce two kinds of covariant derivatives defined on a real hypersurface in Kähler manifolds with respect to the Levi-Civita connection and the $k$-th generalized Tanaka-Webster connection (shortly, gTW-connection). Related to such two kinds of derivatives, we study a generalized parallelism of structure Jacobi operator on a real hypersurface in complex Grassmannians with rank two. And by using this property, we will give some classification results of real hypersurfaces in complex Grassmannians of rank two.

Funding Statement

This work was supported by grant Proj. No.NRF-2022-R1A2C-100456411 from National Research Foundation of the Republic of Korea. The first author was supported by grant Proj. No.NRF-2020R1G1A1A-01003570, the second author by NRF-2022-R1I1A1A-01055993, and the third by NRF-2020R1I1A1A-01067835.

Citation

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Gyu Jong KIM. Hyunjin LEE. Eunmi PAK. "Derivatives of structure Jacobi operator on real hypersurfaces in complex Grassmannians of rank two." Hokkaido Math. J. 53 (2) 247 - 283, June 2024. https://doi.org/10.14492/hokmj/2022-656

Information

Received: 30 August 2022; Revised: 6 January 2023; Published: June 2024
First available in Project Euclid: 23 June 2024

Digital Object Identifier: 10.14492/hokmj/2022-656

Subjects:
Primary: 53C40
Secondary: 53C15

Keywords: complex Grassmannians of rank two , complex hyperbolic two-plane Grassmannians , complex two-plane Grassmannians , generalized Tanaka-Webster connection , Hopf real hypersurfaces , Levi-civita connection , structure Jacobi operator

Rights: Copyright c 2024 Hokkaido University, Department of Mathematics

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Vol.53 • No. 2 • June 2024
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