Translating solitons of mean curvature flow of noncompact spacelike hypersurfaces in Minkowski space

Minkowski空间中的整体类空平移孤子

Entire spacelike translating solitons in Minkowski space

本文通过在有界凸域构造凸类空解并在无穷远指定边界数据，得到了Minkowski空间中多个整体光滑凸严格类空平移孤子。

Mean curvature flow of noncompact hypersurfaces with Type-II curvature blow-up. II

We continue the study, initiated by the first two authors in \cite{IW19}, of Type-II curvature blow-up in mean curvature flow of complete noncompact embedded hypersurfaces. In particular, we construct mean curvature flow solutions, in the rotationally symmetric class, with the following precise asymptotics near the "vanishing" time $T$: (1) The highest curvature concentrates at the tip of the hypersurface (an umbilical point) and blows up at the rate $(T-t)^{-1}$. (2) In a neighbourhood of the tip, the solution converges to a translating soliton known as the bowl soliton. (3) Near spatial infi…

Minkowski空间中的平移解与全Hessian曲率流

Translating solutions and the entire Hessian curvature flow in Minkowski space

该文研究Minkowski空间非紧类空超曲面的$k$-Hessian曲率流，证明了给定渐近行为的平移解存在性，以及满足条件的严格凸初始超曲面的曲率流全局存在且归一化后收敛到平移解。

洛伦兹乘积中的完备平移孤立子

Complete translating solitons in Lorentzian products

本文研究洛伦兹乘积空间中类空平移孤立子的存在性障碍，分析不同距离下平均曲率增长界对完备性和Omori-Yau原理的作用，修正经典结果并深化非一致椭圆方程解的唯一性研究。

Mean curvature flow of noncompact hypersurfaces with Type-II curvature blow-up

We study the phenomenon of Type-II curvature blow-up in mean curvature flows of rotationally symmetric noncompact embedded hypersurfaces. Using analytic techniques based on formal matched asymptotics and the construction of upper and lower barrier solutions enveloping formal solutions with prescribed behavior, we show that for each initial hypersurface considered, a mean curvature flow solution exhibits the following behavior near the "vanishing" time $T$: (1) The highest curvature concentrates at the tip of the hypersurface (an umbilic point), and for each choice of the parameter $γ>1/2$, the…

Minkowski空间中完备超曲面的预定曲率问题

The prescribed curvature problem for entire hypersurfaces in Minkowski space

本文证明了Minkowski空间中完备类空超曲面在预定曲率方程及向下平移解下的存在性、唯一性与有界性，涵盖严格凸与$k$-凸情形。