Two self-similar solutions found for time-like hypersurfaces in Minkowski spacetime.
problem Finding self-similar solutions for time-like extremal hypersurfaces in Minkowski spacetime.
method Explicit construction of two self-similar solutions.
result An untable eigenvalue found in the linearized equation around the solutions.
The paper lists all self-similar solutions for a flow in 2D space.
problem Finding solutions to the inverse mean curvature flow in 2D.
method Obtained a complete list of self-similar solutions.
result Completely enumerated all self-similar solutions for the flow.
The paper analyzes self-similar solutions for mean curvature flow in 3D.
problem Analyzing self-similar solutions for mean curvature flow in R3. method Analysis of self-similar solutions for surfaces of revolution, ruled surfaces, and cylindrical surfaces under homothetic helicoidal motions.
result Characterization and explicit families of exact solutions for cylindrical surfaces.
Study finds solutions for degenerate affine curve shortening flow.
problem Analyzing degenerate affine curve shortening flow.
method Solved equations for affine self-similar solutions.
result New special solutions discovered for affine curve shortening flow.
The paper examines self-similar solutions in warped products.
problem Analyzing self-similar solutions in warped products.
method Investigates solutions satisfying F−F=gˉ(λ(r)∂r,ν), focusing on slices and uniqueness in specific spaces. result Slices are the only closed strictly convex self-similar solutions in the hemisphere for certain curvature functions.
Study finds solutions to flows by negative curvature powers.
problem Curvature flows with negative powers.
method Closed self-similar solutions in warped product manifolds, proving non-strict convexity.
result Proves self-similar solutions are slices of warped product manifolds.
Paper proves rigidity for self-similar solutions in 3D flows.
problem Proving rigidity for self-similar solutions in curvature flows.
method Proves rigidity results for self-similar solutions of fully non-linear parabolic flows in R^3.
result Self-similar solutions are round spheres with genus zero.
Self-similar solutions to geometric flows are stable under small perturbations.
problem Stability of self-similar solutions in geometric flows.
method Global analytic solutions, compactness arguments, spatial equi-decay properties, and estimates of linearized operator.
result Perturbed solutions are asymptotically self-similar as time tends to infinity.
Develops local theory for singular spacetimes becoming asymptotically self-similar.
problem Construction of singular spacetimes in all dimensions.
method Local theory and construction of exact self-similar solutions.
result Construction of exact self-similar solutions corresponding to formal asymptotic expansions.
Classifies self-similar curve shortening flows in hyperbolic 2-space.
problem Classifying self-similar curve shortening flows in hyperbolic 2-space.
method Analyzes and classifies solutions in hyperbolic 2-space.
result Completes the classification of self-similar curve shortening flows in constant curvature model spaces in 2-dimensions.
Classifies self-similar solutions for heat equations with positive speed.
problem Classifying self-similar solutions for semilinear heat equations.
method Analyzes the semilinear heat equation ut=Δu+∣u∣p−1u for p>1. result Finite time blowing up solutions converge to a positive constant after rescaling.
We give a classification of all self-similar solutions to the curve shortening flow in the plane.
The study proves uniqueness and symmetry of self-similar solutions in warped product spaces.
problem Uniqueness and symmetry of self-similar solutions in warped product spaces.
method Analysis of curvature flows with homogeneous speed functions in warped product spaces.
result Compact star-shaped self-similar solutions in warped product spaces are slices.
The paper proves conditions for self-similar solutions of curvature flows to be round spheres.
problem Conditions for strictly convex self-similar solutions of curvature flows to be round spheres.
method Employing a new inequality, the paper shows curvature pinching conditions and compares curvature functions.
result Conditions for self-similar solutions of curvature flows to be round spheres.
Uniqueness of convex self-similar solutions shown for a specific curvature flow.
problem Uniqueness of strictly convex closed self-similar solutions to the Gauss curvature flow.
method Introduced a Pogorelov type computation and applied the strong maximum principle.
result Uniqueness of strictly convex closed smooth self-similar solutions to the α-Gauss curvature flow with (1/n)<α<1+(1/n). This article gives an alternative approach to the self-shrinking and self-expanding solutions of the curve shortening flow, which are related to singularity formation of the mean curvature flow. The motivation for the self-similar solutions arises from natural area preserving rescaling. Further we describe the self-sim…
The paper examines the stability of two spherical self-similar solutions in Minkowski spacetime.
problem Stability of timelike extremal hypersurfaces in Minkowski spacetime.
method Analysis of linear and nonlinear stability, construction of Newton's polygon.
result Explicit lightlike self-similar solutions are nonlinearly stable inside a subset of the backward lightcone.
We classify all Hamiltonian stationary Lagrangian surfaces in complex Euclidean plane which are self-similar solutions of the mean curvature flow.
Study on self-similar solutions of supercritical Fujita equation, proving entropy and energy gap.
problem Characterization and stability of solutions to supercritical Fujita equation.
method Introduction of F-functional, F-stability, and entropy; use of mean curvature flows. result Constant solution has lowest entropy among bounded positive self-similar solutions.
Researchers prove existence of a stable self-similar blowup solution.
problem Proving the spectral gap conjecture for harmonic map heat flow.
method Existence of a monotone self-similar solution using interval arithmetic for rigorous computer-assisted estimates.
result Mathematically rigorous proof of the stability of a self-similar blowup solution.
Curvature flow and inverse curvature flow solutions on 2D light cone identified.
problem Identifying self-similar solutions to curvature flow and inverse curvature flow on 2D light cone.
method Proved correspondence between CF and ICF solutions, analyzed ellipses and hyperboles, and characterized self-similar solutions.
result Ellipses and hyperboles are the only curves evolving under homotheties on the 2D light cone.
We introduce the mean curvature flow of curves in the Minkowski plane R1,1 and give a classification of all the self-similar solutions. In addition, we describe five other exact solutions to the flow.
By the curve shortening flow, the only closed embedded contracting self-similar solutions are circles: we give a very short and intuitive geometric proof of this basic and classical result using an idea of Gage.
We carry out the first main step towards the construction of new examples of complete embedded self-similar surfaces under mean curvature flow. An approximate solution is obtained by taking two known examples of self-similar surfaces and desingularizing the intersection circle using an appropriately modified singly per…
The paper constructs and analyzes self-similar blowup solutions for a wave map equation.
problem Existence and stability of self-similar blowup solutions for a wave map equation.
method Construction of self-similar solutions, detailed nonlinear stability analysis, spectral analysis of linearized operators.
result Sharp semigroup bounds and nonlinear stability of all discretely self-similar profiles in all dimensions.
Paper classifies ruled surfaces in Lorentz-Minkowski space for a specific flow.
problem Classifying ruled surfaces in Lorentz-Minkowski space.
method Examining homothetic self-similar solutions of the inverse mean curvature flow.
result Existence of two classes of non-cylindrical homothetic solitons.
We classify the self-similar solutions to a class of Weingarten curvature flow of connected compact convex hypersurfaces, isometrically immersed into space forms with non-positive curvature, and obtain a new characterization of a sphere in a Euclidean space Rn+1.
New self-similarity for Einstein vacuum equations identified.
problem Understanding spacetime behavior near singularities.
method Systematic geometric characterization and formal expansions.
result Twisted self-similar solutions cover all asymptotic behaviors.
In this survey article, we discuss some topics on self-similar solutions to the Ricci flow and the mean curvature flow. Self-similar solutions to the Ricci flow are known as Ricci solitons. In the first part of this paper we discuss a lower diameter bound for compact manifolds with shrinking Ricci solitons. Such a boun…
The self-similar solutions to the mean curvature flows have been defined and studied on the Euclidean space. In this paper we initiate a general treatment of the self-similar solutions to the mean curvature flows on Riemannian cone manifolds. As a typical result we extend the well-known result of Huisken about the asym…
We study the contraction of a convex immersed plane curve with speed (1/α)k^{α}, where αin(0,1] is a constant and show that, if the blow-up rate of the curvature is of type one, it will converge to a homothetic self-similar solution. We also discuss a special symmetric case of type two blow-up and show that it converge…
Classifies solitons for surface diffusion flow of graphs.
problem Classifying solitons for surface diffusion flow of graphs.
method Classifies solitons including equilibria, self-similar solutions, and travelling waves.
result Classified solitons for surface diffusion flow of entire graphs.
We construct new examples of self-similar solutions and translating solitons for Lagrangian mean curvature flow by extending the method of Joyce, Lee and Tsui. Those examples include examples in which the Lagrangian angle is arbitrarily small as the examples of Joyce, Lee and Tsui.
Study on mean curvature flow in a cone, proving existence and homogenization.
problem Mean curvature flow in a cone with periodic boundary conditions.
method Construction of self-similar solutions, a priori estimates, homogenization limit analysis.
result Global existence of radially symmetric solutions and characterization of the homogenization limit.
Estimates the rate of convergence of mean curvature flow solutions.
problem Understanding the convergence rate of mean curvature flow solutions.
method Estimates the upper bound of convergence rate to a limit self-similar solution.
result Solutions converging faster than any fixed exponential rate must be shrinkers themselves.
We confirm a well-known conjecture that the round sphere is the only compact, embedded self-similar shrinking solution to the mean curvature flow with genus 0. More generally, we show that the only properly embedded self-similar shrinkers in R3 with vanishing intersection form are the sphere, the cylinder…
We study the Dirichlet problem associated to the equation for self-similar surfaces for graphs over the Euclidean plane with a disk removed. We show the existence of a solution provided the boundary conditions on the boundary circle are small enough and satisfy some symmetries. This is the second step towards the const…
New proof of self-similar solutions for inverse mean curvature flow.
problem Existence of self-similar solutions for inverse mean curvature flow.
method New proof using specific equations and conditions.
result Existence of a unique radially symmetric solution with specific properties.
This work addresses the {\em singularity formation} of complete non-compact solutions to the conformally flat Yamabe flow whose conformal factors have {\em cylindrical behavior at infinity}. Their singularity profiles happen to be {\em Yamabe solitons}, which are {\em self-similar solutions} to the fast diffusion equat…
Study on transverse Ricci solitons on compact foliated manifolds.
problem Characterizing transverse Ricci solitons on compact foliated manifolds.
method Investigation of self-similar solutions of the transverse Ricci flow, analysis of taut Riemannian foliations.
result Established relations between taut Riemannian foliations and transverse Ricci solitons, found examples of transverse Ricci solitons.
Study of naked singularities in Einstein vacuum equations using new self-similarity.
problem Mathematical study of naked singularities in the Einstein vacuum equations.
method Introduction of new self-similarity and geometric twisting for singularity formation.
result Construction of solutions corresponding to the exterior region of a naked singularity.
The paper defines Hesse solitons and explores their properties on Hessian manifolds.
problem Exploring self-similar solutions to the Hesse flow on Hessian manifolds.
method Defining Hesse solitons and analyzing their properties on Hessian manifolds.
result Compact proper Hesse solitons are expanding, and non-trivial compact gradient Hesse solitons are proper.
The study finds that only round spheres shrink self-similarly under certain curvature flows.
problem Investigating self-similar solutions to curvature flows by high powers of curvature.
method Analyzing closed strictly convex hypersurfaces in Rn+1 under specific curvature flows. result Only round spheres shrink self-similarly under the studied curvature flows.
The study finds only spheres shrink self-similarly with quotient curvature speeds.
problem Characterizing self-similar shrinkers for quotient curvature speeds.
method Examined closed hypersurfaces shrinking with quotient curvature speeds.
result Only shrinking spheres are self-similar solutions.
I classify spacelike self-similar shrinking solutions of the mean curvature flow in pseudo-euclidean space in arbitrary codimension, if the mean curvature vector is not a null vector and the principal normal vector is parallel in the normal bundle. Moreover, I exclude the existence of such self-shrinkers in several cas…
We prove the existence of self-similar expanding solutions of the curvature flow on planar networks where the initial configuration is any number of half-lines meeting at the origin. This generalizes recent work by Schnürer and Schulze which treats the case of three half-lines. There are multiple solutions, and these a…
Study classifies ruled surfaces from mean curvature flow solutions.
problem Investigating surfaces with specific mean curvature equations.
method Classifying ruled and translation surfaces in Euclidean space.
result Ruled and translation surfaces are cylindrical.
Study Ricci flows on manifolds, proving they behave like self-similar solutions and confirming a conjecture.
problem Understanding the behavior of Ricci flows on higher-dimensional manifolds.
method Analyzing n-dimensional Ricci flows with non-negative Ricci curvature, starting at metric cones. result Ricci flows behave like self-similar solutions up to an exponential error in time.