The Legendrian Self-Expander in the Standard Contact Euclidean Five-space

Main Article Content

Liuyang Zhang
QIUXIA ZHANG

Abstract

Based on the geometric correspondence between Lagrangian and Legendrian submanifolds, we construct Legendrian 2-submanifolds in the standard contact Euclidean Five-space $\mathbb{R}^{5} $ satisfying the self-similarity equation $H+\theta\xi=\alpha{F}^{\perp}(\alpha>0) $, with particular focus on their self-expander solutions under Legendrian mean curvature flow. This paper mainly generalizes Theorem C of the work by Joyce-Lee-Tsui.

Article Details

How to Cite
Zhang, L., & ZHANG, Q. (2025). The Legendrian Self-Expander in the Standard Contact Euclidean Five-space. Tamkang Journal of Mathematics, 57(1), 27–37. https://doi.org/10.5556/j.tkjm.57.2026.5870
Section
Papers

References

@article{anciaux2006construction,

title={Construction of Lagrangian self-similar solutions to the mean curvature flow in $ mathbb{C}^{n} $},

author={Anciaux, Henri},

journal={Geometriae Dedicata},

volume={120},

number={1},

pages={37--48},

year={2006},

publisher={Springer}

}

@book{blair2010riemannian,

title={Riemannian geometry of contact and symplectic manifolds},

author={Blair, David E},

volume={203},

year={2010},

publisher={Birkhäuser},

address={Boston}

}

@article{cao2013gap,

title={A gap theorem for self-shrinkers of the mean curvature flow in arbitrary codimension},

author={Cao, Huai-Dong and Li, Haizhong},

journal={Calculus of Variations and Partial Differential Equations},

volume={46},

pages={879--889},

year={2013},

publisher={Springer}

}

@article{castro2014clifford,

title={The Clifford torus as a self-shrinker for the Lagrangian mean curvature flow},

author={Castro, Ildefonso and Lerma, Ana M},

journal={International Mathematics Research Notices},

volume={2014},

number={6},

pages={1515--1527},

year={2014},

publisher={OUP}

}

@article{castro2007minimal,

title={Minimal Lagrangian surfaces in $ mathbb{S}^{2}timesmathbb{S}^{2} $},

author={Castro, Ildefonso and Urbano, Francisco},

journal={Communications in Analysis and Geometry},

volume={15},

number={2},

pages={217},

year={2007},

publisher={INTERNATIONAL PRESS}

}

@article{chang2024legendrian,

title={Legendrian Mean Curvature Flow in $eta$-Einstein Sasakian Manifolds},

author={Chang, Shu-Cheng and Han, Yingbo and Wu, Chin-Tung},

journal={The Journal of Geometric Analysis},

volume={34},

number={3},

pages={89},

year={2024},

publisher={Springer}

}

@article{chang2023smale,

title={The Smale Conjecture and Minimal Legendrian Graph in $ mathbb{S}^{2}timesmathbb{S}^{3} $ },

author={Chang, Shu-Cheng and Wu, Chin-Tung and Zhang, Liuyang},

journal={arXiv preprint arXiv:2312.15996},

year={2023}

}

@article{chang2025shrinker,

title={The Classification of Legendrian Self-Shrinkers In the Standard Contact Euclidean Five-Space},

author={Chang, Shu-Cheng and Wu, Chin-Tung and Zhang, Liuyang and Qiuxia Zhang},

journal={preprint},

year={2025},

}

@article{ding2014rigidity,

title={The rigidity theorems of self-shrinkers},

author={Ding, Qi and Xin, YL},

journal={Transactions of the American Mathematical Society},

volume={366},

number={10},

pages={5067--5085},

year={2014}

}

@article{joyce2010self,

title={Self-similar solutions and translating solitons for Lagrangian mean curvature flow},

author={Joyce, Dominic and Lee, Yng-Ing and Tsui, Mao-Pei},

journal={Journal of Differential Geometry},

volume={84},

number={1},

pages={127--161},

year={2010},

publisher={Lehigh University}

}

@article{lawlor1989angle,

title={The angle criterion},

author={Lawlor, Gary},

journal={Inventiones mathematicae},

volume={95},

number={2},

pages={437--446},

year={1989},

publisher={Springer}

}

@article{li2017new,

title={New characterizations of the Clifford torus as a Lagrangian self-shrinker},

author={Li, Haizhong and Wang, Xianfeng},

journal={The Journal of Geometric Analysis},

volume={27},

pages={1393--1412},

year={2017},

publisher={Springer}

}

@article{smoczyk2003closed,

title={Closed Legendre geodesics in Sasaki manifolds},

author={Smoczyk, Knut},

journal={New York J. Math},

volume={9},

number={41},

pages={23--47},

year={2003}

}

@article{sun2020sphere,

title={Sphere theorems for Lagrangian and Legendrian submanifolds},

author={Sun, Jun and Sun, Linlin},

journal={Calculus of Variations and Partial Differential Equations},

volume={59},

number={4},

pages={125},

year={2020},

publisher={Springer}

}

@article{warren2008liouville,

title={A Liouville type theorem for special Lagrangian equations with constraints},

author={Warren, Micah and Yuan, Yu},

journal={Communications in Partial Differential Equations},

volume={33},

number={5},

pages={922--932},

year={2008},

publisher={Taylor & Francis}

}