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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,657 papers · 148 categories

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5.6%11.1%16.7%22.2% · Apr 199619922001200920172026
48 results for anisotropic flows

The paper studies a curve flow preserving anisotropic length for convex curves, leading to a homothetic limit.

problem Anisotropic length preservation in curve deformation.
method A curve flow that maintains anisotropic length, analyzed for convex closed curves.
result Convex curves evolve to homothetic limits of Wulff shapes as time approaches infinity.

Study anisotropic flow for capillary hypersurfaces, proving new inequalities.

problem Anisotropic capillary hypersurfaces and their properties.
method Anisotropic volume-preserving mean curvature flow, new approach for strictly convex initial hypersurfaces.
result Established new Alexandrov-Fenchel inequalities for strictly convex anisotropic capillary hypersurfaces.

Study shows how weak inverse anisotropic mean curvature flow behaves at infinity.

problem Understanding the asymptotic behavior of anisotropic mean curvature flow.
method Established local gradient estimates for anisotropic pp-harmonic functions and weak solutions of IAMCF.
result Weak IAMCF is asymptotic to the expanding Wulff shape solution at infinity.

In this paper we consider the evolution of a graph-like hypersurface by anisotropic mean curvature flow, under some restrictions on the anisotropic area integrand. We find interior estimates (in both time and space) on the gradient of such hypersurfaces, depending only on the height of the graph and the anisotropic are…

2005-10-02abs ↗pdf ↗

The article analyzes the stability of a curve shortening flow for planar networks.

problem Stability analysis of anisotropic curve shortening flow for planar networks.
method Used Lojasiewicz-Simon gradient inequality to derive stability results.
result For initial data close to an energy minimizer, the flow exists globally and converges to a different energy minimum.

The paper studies a flow of convex hypersurfaces using anisotropic curvature functions.

problem Deforming convex hypersurfaces in Euclidean space.
method Fully nonlinear curvature flow involving k-th elementary symmetric function and support function.
result Long-time existence and convergence of the flow under certain assumptions.

The paper studies curvature measures and volume-preserving flows on convex bodies.

problem Characterizing and understanding convex bodies through anisotropic curvature measures.
method Developed anisotropic curvature measures, used Minkowski formulas and Heintze-Karcher inequalities, and analyzed volume-preserving flows.
result Characterized Wulff shapes via anisotropic curvature measures and proved convergence of volume-preserving flows.

Study anisotropic inverse Gauss curvature flows and solve dual Orlicz Minkowski problems.

problem Solving dual Orlicz Minkowski problems for anisotropic flows.
method Anisotropic inverse Gauss curvature flows and stationary solutions.
result New existence results for dual Orlicz Minkowski problems for smooth measures.

Sharp bounds for anisotropic p-capacity of Euclidean compact sets derived using flow methods.

problem Sharp bounds for anisotropic p-capacity of Euclidean compact sets.
method Inverse anisotropic mean curvature flow (IAMCF) and anisotropic Hawking mass.
result Upper bounds for anisotropic p-capacity derived using flow methods.

The paper introduces a new flow to converge to a Wulff shape from a smooth convex hypersurface.

problem Proving Alexandrov-Fenchel inequalities for anisotropic mixed volumes.
method Introducing a fully nonlinear locally constrained anisotropic curvature flow.
result The flow converges smoothly and exponentially to a scaled Wulff shape.

New method models fat-tailed distributions with anisotropic tail-adaptive flows.

problem Gaussian-based variational inference fails to accurately capture tail decay in fat-tailed distributions.
method Improved theory on tails of flows, developed anisotropic tail-adaptive flows (ATAF).
result ATAF models tail-anisotropy, outperforming prior work on synthetic and real-world targets.

Study solves a generalized Christoffel-Minkowski problem using curvature flow.

problem Generalization of the LpL_{p}-Christoffel-Minkowski problem.
method Anisotropic curvature flow to derive long-time existence and smooth solutions.
result Existence of smooth solutions for c=1c=1 under certain initial data.

We present a new implementation of anisotropic mean curvature flow for contour recognition. Our procedure couples the mean curvature flow of planar closed smooth curves, with an external field from a potential of point-wise charges. This coupling constrains the motion when the curve matches a picture placed as backgrou…

2018-03-10abs ↗pdf ↗

We study the long time existence theory for a non local flow associated to a free boundary problem for a trapped non liquid drop. The drop has free boundary components on two horizontal plates and its free energy is anisotropic and axially symmetric. For axially symmetric initial surfaces with sufficiently large volume…

2011-10-31abs ↗pdf ↗

Study an anisotropic capillary flow to solve capillary Orlicz-Minkowski problem.

problem Solve capillary Orlicz-Minkowski problem without evenness assumption.
method Analyze an anisotropic capillary Gauss curvature flow to prove convergence and establish existence.
result Establish existence result for capillary Orlicz-Minkowski problem without evenness assumption.

Study anisotropic flows without global terms and solve dual Orlicz Christoffel-Minkowski problems.

problem Anisotropic flows without global forcing terms and dual Orlicz Christoffel-Minkowski problems.
method Existence results for dual Orlicz Christoffel-Minkowski type problems via stationary solutions of anisotropic flows.
result Existence results for a class of dual Orlicz Christoffel-Minkowski type problems.

In this paper, we show that the inverse anisotropic mean curvature flow in Rn+1\mathbb{R}^{n+1}, initiating from a star-shaped, strictly FF-mean convex hypersurface, exists for all time and after rescaling the flow converges exponentially fast to a rescaled Wulff shape in the CC^\infty topology. As an application, we p…

2015-06-30abs ↗pdf ↗

The paper studies a curvature flow on hypersurfaces in R^(n+1).

problem Analyzing the long-term behavior of a specific type of curvature flow.
method Examining a flow defined by a non-homogeneous anisotropic speed function.
result The flow converges to a sphere for star-shaped and k-convex initial hypersurfaces.

Study anisotropic flows solving Orlicz-Minkowski problems, proving existence and new results.

problem Anisotropic non-homogeneous Gauss curvature flows and Orlicz-Minkowski problems.
method Long-time existence and behavior analysis, parabolic approximation method, curvature flow.
result Existence and new results for Orlicz-Minkowski problems, including LpL_p versions.

New method models dewetting of anisotropic particles using numerical techniques.

problem Modeling dewetting dynamics of particles with varying surface energies.
method Level set numerical approach with convolution kernels to handle anisotropic interfacial energies.
result Validated numerical scheme supports merging and splitting of interfaces.

Sharp upper bounds derived for capacities in hyperbolic and Euclidean spaces.

problem Finding upper limits for the capacity of compact sets in hyperbolic and Euclidean spaces.
method Inverse mean curvature flow, unit-speed normal flow, weak inverse mean curvature flow, inverse anisotropic mean curvature flow.
result Various sharp upper bounds for the pp-capacity of compact sets in hyperbolic and Euclidean spaces are derived.

Unified flow solves LpL^p Christoffel-Minkowski problem for p>1p>1.

problem Solving the LpL^p Christoffel-Minkowski problem for p>1p>1.
method Anisotropic expanding flow of smooth hypersurfaces with speed ψσk(λ)αψσ_k(λ)^α.
result The flow converges to a solution of the LpL^p Christoffel-Minkowski problem.

Anisotropic obstacle problems and Stefan problem studied with evolving surfaces.

problem Anisotropic parabolic obstacle problems and Stefan problem.
method Cahn-Hoffman transform and anisotropic mean curvature flow.
result Optimal regularity of the solution and C1,αC^{1,α}-regularity of the evolving free boundary.

The paper studies a flow of spacelike curves in a Lorentz-Minkowski plane, showing convergence to a constant function.

problem Evolution of spacelike graphic curves in Lorentz-Minkowski plane.
method Anisotropic inverse mean curvature flow with vanishing Neumann boundary condition.
result The evolving curves converge to a constant function as time tends to infinity.

The paper studies a flow of spacelike surfaces in Lorentz-Minkowski space, proving convergence to a hyperbolic plane.

problem Evolution of spacelike graphic hypersurfaces in Lorentz-Minkowski space.
method Anisotropic inverse mean curvature flow with Neumann boundary condition.
result The flow converges to a hyperbolic plane as time tends to infinity.

The Willmore flow is well known problem from the differential geometry. It minimizes the Willmore functional defined as integral of the mean-curvature square over given manifold. For the graph formulation, we derive modification of the Willmore flow with anisotropic mean curvature. We define the weak solution and we pr…

2011-11-13abs ↗pdf ↗

Proposes a scalable framework for extracting data manifold geometry.

problem Efficiently mapping and learning data manifold geometry.
method Score-based pullback Riemannian geometry integrating pullback Riemannian geometry and generative models.
result High-quality geodesics and reliable intrinsic dimension estimation.

The paper studies curvature flows of star-shaped hypersurfaces and proves convergence to spheres.

problem Analyzing the convergence of a class of anisotropic curvature flows.
method Using new auxiliary functions, the paper studies a class of flows with specific speed and proves convergence under certain conditions.
result The kk-convex solution to the flow converges smoothly to a sphere after normalization for specific values of kk, αα, and ββ.

We study long-time existence and asymptotic behaviour for a class of anisotropic, expanding curvature flows. For this we adapt new curvature estimates, which were developed by Guan, Ren and Wang to treat some stationary prescribed curvature problems. As an application we give a unified flow approach to the existence of…

2016-08-09abs ↗pdf ↗

New method for evolving surfaces using generalized power mean curvature flow.

problem Evolve surfaces with volume penalization replaced by a generalized term.
method Generalized minimizing movement scheme converging to geometric evolution equation.
result Minimizing movements coincide with smooth classical solutions and preserve mean convexity.

WS diffusion models handle anisotropic Gaussian noise better than conventional methods.

problem Handling anisotropic Gaussian noise in imaging inverse problems.
method Whitened Score (WS) diffusion models based on stochastic differential equations.
result WS DMs outperform conventional DMs on anisotropic Gaussian noise.

We analyze a gradient flow of closed planar curves minimizing the anisoperimetric ratio. For such a flow the normal velocity is a function of the anisotropic curvature and it also depends on the total interfacial energy and enclosed area of the curve. In contrast to the gradient flow for the isoperimetric ratio, we sho…

2012-03-10abs ↗pdf ↗