ﻻ يوجد ملخص باللغة العربية
We show that if $Omega$ is a connection $1$-form on a vector bundle $eta$ over a closed $n$-dimensional Riemannian manifold $mathcal{M}$ with $L^p$-regularity ($p>n$) and smooth curvature $2$-form $mathscr{F}$, then it can be approximated in the $L^p$-norm by smooth connections of the same curvature, provided that $|Omega|_{L^p(mathcal{M})}$ is smaller than a uniform constant depending only on $p$ and $mathcal{M}$.
We show that mean curvature flow of a compact submanifold in a complete Riemannian manifold cannot form singularity at time infinity if the ambient Riemannian manifold has bounded geometry and satisfies certain curvature and volume growth conditions .
We consider the problem of finding complete conformal metrics with prescribed curvature functions of the Einstein tensor and of more general modified Schouten tensors. To achieve this, we reveal an algebraic structure of a wide class of fully nonline
We employ three different methods to prove the following result on prescribed scalar curvature plus mean curvature problem: Let $(M^n,g_0)$ be a $n$-dimensional smooth compact manifold with boundary, where $n geq 3$, assume the conformal invariant $Y
We show some results for the $L^2$ curvature flow linked by the theme of addressing collapsing phenomena. First we show long time existence and convergence of the flow for $SO(3)$-invariant initial data on $S^3$, as well as a long time existence and
We prove an existence result for helicoidal graphs with prescribed mean curvature in a large class of warped product spaces which comprises space forms.