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Related papers: Remarks on the $\mathbf Q$-curvature flow

200 papers

We prove the existence of metrics with prescribed $Q$-curvature under natural assumptions on the sign of the prescribing function and the background metric. In the dimension four case, we also obtain existence results for curvature forms…

Differential Geometry · Mathematics 2019-03-22 Flávio França Cruz , Tiarlos Cruz

We prove under suitable hypotheses that convergence of integral varifolds implies convergence of associated mod 2 flat chains and subsequential convergence of associated integer-multiplicity rectifiable currents. The convergence results…

Differential Geometry · Mathematics 2019-12-19 Brian White

In this article we give a complete description of the evolution of an area decreasing map $f:M\to N$ induced by its mean curvature in the situation where $M$ and $N$ are complete Riemann surfaces with bounded geometry, $M$ being compact,…

Differential Geometry · Mathematics 2016-02-25 Andreas Savas-Halilaj , Knut Smoczyk

We consider an invariant gradient flow for the invariant length functional for co-compact curves in inversive geometry, and prove that solutions exist for all time and converge to loxodromic curves, provided the initial curve is admissible…

Differential Geometry · Mathematics 2025-02-26 Ben Andrews , Glen Wheeler

In this paper we present several curvature estimates for solutions of the Ricci flow which depend on smallness of certain local integrals of the norm of the Riemann curvature tensor.

Differential Geometry · Mathematics 2007-07-17 Rugang Ye

In the short note, we describe a sampling construction that yields a sequence of graphons converging to a prescribed limit graphon in 1-norm. This convergence is stronger than the convergence in the cut norm, usually used to study graphon…

Signal Processing · Electrical Eng. & Systems 2024-04-02 Xingchao Jian , Feng Ji , Wee Peng Tay

The purpose of this note is to provide an alternative proof of two quadratic transformation formulas contiguous to that of Gauss using a differential equation approach.

Classical Analysis and ODEs · Mathematics 2014-11-20 M Swathi , A K Rathie , R B Paris

In an earlier work joint with X. X. Chen and G. Tian, we introduced the weak K\"ahler-Ricci flow for various geometric motivations. In the current work, we take further consideration on setting up the weak flow. Namely, the initial class is…

Differential Geometry · Mathematics 2009-10-01 Zhou Zhang

We consider the obstacle problem of the weak solution for the mean curvature flow, in the sense of Brakke's mean curvature flow. We prove the global existence of the weak solution with obstacles which have $C^{1,1}$ boundaries, in two and…

Analysis of PDEs · Mathematics 2021-08-30 Keisuke Takasao

In this brief note is discussed application of continuous quantum history ("trash") variable for simplification of scheme of programmable quantum processor. Similar scheme may be tested also in other models of the theory of quantum…

Quantum Physics · Physics 2010-09-08 Alexander Yu. Vlasov

In this paper, we investigate the prescribed curvature problem associated with a special Lin-Lu-Yau curvature on finite graphs of girth at least 6. We define the corresponding Calabi flow for this curvature type, and establish an equivalent…

Differential Geometry · Mathematics 2026-04-06 Yi Li , Jie Wang , Pingsan Yuan , Chao Zheng

We prove the longtime existence for the mean curvature flow problem with a perpendicular Neumann boundary condition in a Generalized Robertson Walker (GRW) spacetime that obeys the null convergence condition. In addition, we prove that the…

Differential Geometry · Mathematics 2022-08-22 Jorge Lira , Fernanda Roing

We prove a short time existence result for a system consisting of a geometric evolution equation for a hypersurface and a parabolic equation on this evolving hypersurface. More precisely, we discuss a mean curvature flow scaled with a term…

Analysis of PDEs · Mathematics 2022-04-19 Helmut Abels , Felicitas Bürger , Harald Garcke

We show that under Space Curve Shortening flow any closed immersed curve in $\mathbb R^n$ whose projection onto $\mathbb{R}^2\times\{\vec{0}\}$ is convex remains smooth until it shrinks to a point. Throughout its evolution, the projection…

Differential Geometry · Mathematics 2024-10-29 Qi Sun

A method is proposed to deal with some multivalued semiflows with weak continuity properties. An application to the reaction-diffusion problems with nonmonotone multivalued semilinear boundary condition and nonmonotone multivalued…

Analysis of PDEs · Mathematics 2014-02-07 P. Kalita , G. Łukaszewicz

Given a compact four dimensional smooth Riemannian manifold $(M,g)$ with smooth boundary, we consider the evolution equation by $Q$-curvature in the interior keeping the $T$-curvature and the mean curvature to be zero and the evolution…

Analysis of PDEs · Mathematics 2007-08-16 Cheikh Birahim Ndiaye

This is an expository article describing the conformalized mean curvature flow, originally introduced by Kazhdan, Solomon, and Ben-Chen. We are interested in applying mean curvature flow to surface parametrizations. We discuss our own…

Computational Geometry · Computer Science 2020-06-16 Ka Wai Wong

We prove differential Harnack inequalities for flows of strictly convex hypersurfaces by powers $p$, $0<p<1$, of the mean curvature in Einstein manifolds with a positive lower bound on the sectional curvature. We assume that this lower…

Differential Geometry · Mathematics 2021-09-28 Paul Bryan , Heiko Kröner , Julian Scheuer

In this paper, we study inextensible flows of non-null curves in E^n,1. We give necessary and sufficient conditions for inextensible flow of nonnull curves in E^n,1.

Differential Geometry · Mathematics 2016-08-11 Önder Gökmen Yıldız , Murat Tosun

We show the existence of a properly immersed translating solution to curve diffusion flow in the plane. Curve diffusion flow is a higher order version of curve shortening flow, namely \[ \left( \frac{dX}{dt}\right) ^{\perp}=-\kappa_{ss}N.…

Differential Geometry · Mathematics 2024-12-23 W. Jacob Ogden , Micah Warren