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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.

168,742 papers · 148 categories

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83166248331 · Jun 202019922001200920172026
48 results for Mean stability

The study proves stability of various graphical translators in mean curvature flow.

problem Stability of graphical translators in mean curvature flow.
method Existence of longtime solution to mean curvature flow, dynamical stability results for various graphical translators.
result Dynamical stability of various types of graphical translators.

The paper examines the stability of a specific flow on complex manifolds.

problem Stability of line bundle mean curvature flow on complex manifolds.
method Analyzes the convergence of the line bundle mean curvature flow to a deformed Hermitian-Yang-Mills metric.
result The flow converges exponentially to the deformed Hermitian-Yang-Mills metric in the CC^\infty sense.

The study examines stability of triharmonic hypersurfaces in space forms.

problem Stability of triharmonic hypersurfaces in space forms.
method Derivation of general stability statements, focus on specific cases of constant mean curvature in Euclidean and hyperbolic spaces, and analysis of small proper triharmonic hyperspheres and Clifford tori.
result Triharmonic hypersurfaces of constant mean curvature in Euclidean space are weakly stable with respect to normal variations, while in hyperbolic space they are stable.

Paper proves stability of flow in cotangent bundle for special Lagrangian submanifolds.

problem Stability of generalized Lagrangian mean curvature flow in cotangent bundle.
method New derivative estimates to weaken initial conditions and remove curvature constraints.
result Stability of flow near special Lagrangian submanifolds in cotangent bundle.

We consider graphical solutions to mean curvature flow and obtain a stability result for homothetically expanding solutions coming out of cones of positive mean curvature: If another solution is initially close to the cone at infinity, then the difference to the homothetically expanding solution becomes small for large…

2008-11-03abs ↗pdf ↗

The paper proves the stability of a flow in Schwarzschild space.

problem Stability of area preserving mean curvature flow in asymptotic Schwarzschild space.
method Demonstrates existence and exponential convergence of the flow for all time.
result The flow converges to a round sphere or a constant mean curvature surface.

Paper proves stability and Dirichlet problem for translating hypersurfaces.

problem Stability and Dirichlet problem for translating hypersurfaces.
method Analyzes translating solitons in en+k e^{n+k}, proves stability conditions, and studies Dirichlet problem.
result Proves the infimum of mean curvature is zero for translating solitons and conditions for stability.

We investigate the role of the initialization for the stability of the k-means clustering algorithm. As opposed to other papers, we consider the actual k-means algorithm and do not ignore its property of getting stuck in local optima. We are interested in the actual clustering, not only in the costs of the solution. We…

2009-07-31abs ↗pdf ↗

Minimal Lagrangians in certain curved spaces are stable under specific flows.

problem Stability of minimal Lagrangians in Kähler-Einstein manifolds of non-positive curvature.
method Proved stability under Lagrangian mean curvature flow.
result Equivalence between linear and dynamical stability for C1C^1-close Lagrangians.

The paper examines stability of Yamabe boundary problem under perturbations.

problem Stability of Yamabe boundary problem under perturbations of mean curvature and scalar curvature.
method Analyzes stability of the Yamabe boundary problem with respect to perturbations of mean curvature and scalar curvature.
result The stability of the Yamabe boundary problem is proven under perturbations from below, but not from above.

We consider a system of diffusion processes that interact through their empirical mean and have a stabilizing force acting on each of them, corresponding to a bistable potential. There are three parameters that characterize the system: the strength of the intrinsic stabilization, the strength of the external random per…

2012-04-16abs ↗pdf ↗

Study stabilizes translating solitons in hyperbolic space for MCF.

problem Stability of translating solitons in hyperbolic space.
method Developed theory, constructed rotationally invariant translators, used avoidance principle and maximum principle.
result Horospheres are dynamically stable as radial graphical solutions to MCF.

Surface diffusion and mean curvature flows converge to stable critical sets in flat tori.

problem Stability of surface diffusion and mean curvature flows in flat tori.
method Existence and convergence of flows starting close to stable critical sets, proven for all times.
result Flows converge exponentially fast to stable critical sets in flat tori.

Paper analyzes SHB method for neural networks, proving stability, connectivity, and global convergence.

problem Theoretical understanding of SHB method for neural networks.
method Mean-field analysis of SHB dynamics related to a partial differential equation.
result SHB method converges to global optimum and exhibits stability and connectivity.

The paper studies stability of mean-field variational inference for log-concave distributions.

problem Stability of mean-field variational inference for log-concave distributions.
method Novel approach via linearized optimal transport, lifting non-convex problem to convex optimization over transport maps.
result Dimension-free Lipschitz continuity of the MFVI optimizer with respect to the target distribution, measured in 2-Wasserstein distance.

This work explores the trade-offs between stability and accuracy in statistical estimation.

problem Understanding the statistical cost of algorithmic stability.
method Statistical decision-theoretic perspective, focusing on worst-case and average-case stability.
result Optimal stable estimators for mean estimation and regression settings are developed, revealing trade-offs between stability and accuracy.

The paper studies the stability of volume and area preserving mean curvature flows in Schwarzschild and asymptotic Schwarzschild spaces.

problem Investigating the stability of mean curvature flows in specific spacetime geometries.
method Combining center manifold analysis with global existence results for flows near isoperimetric hypersurfaces.
result Global existence and convergence to constant mean curvature (CMC) hypersurfaces for flows in asymptotic Schwarzschild space.

New stability conditions for ZO methods reveal unique regularization effects.

problem Understanding optimization dynamics of ZO methods in deep learning.
method Explicit step size conditions and stability bounds derived for ZO methods.
result ZO methods operate near the edge of stability, with regularization effects specific to Hessian trace vs. eigenvalue.

We study the mean curvature flow of hypersurfaces in Rn+1\R^{n+1}, with initial surfaces sufficiently close to the standard nn-dimensional sphere. The closeness is in the Sobolev norm with the index greater than n2+1\frac{n}{2}+1 and therefore it does not impose restrictions of the mean curvature of the initial surface. W…

2011-10-24abs ↗pdf ↗

Optimism stabilizes Thompson Sampling for adaptive inference in multi-armed bandits.

problem Subtle inferential properties of Thompson Sampling under adaptive data collection.
method Introduced optimism as a key mechanism to restore stability and validity of inference.
result Suitably implemented optimism stabilizes Thompson Sampling and enables asymptotically valid Wald inference.

GNMR controls runtime stability in low-precision language model training.

problem Efficient low-precision training faces numerical risks at specific operators.
method GNMR compares gradient norms to historical means, applying bounded recovery actions.
result GNMR preserves high-fidelity quality with sparse, budgeted recovery.

New model stabilizes asynchronous LTI systems, independent of synchronous stability.

problem Stability of asynchronous LTI systems under randomization and asynchrony.
method Introduced a new model for random asynchronous LTI systems and developed a method for system identification.
result Stability of random asynchronous LTI systems is independent of synchronous stability.

In this paper we study the r-stability of closed spacelike hypersurfaces with constant rr-th mean curvature in conformally stationary spacetimes of constant sectional curvature. In this setting, we obtain a characterization of rr-stability through the analysis of the first eigenvalue of an operator naturally attached…

2010-03-01abs ↗pdf ↗

The paper proves rigidity and stability properties of self-shrinking surfaces in 3D space.

problem Rigidity and stability of self-shrinking surfaces in R3\mathbb{R}^3.
method Analyzing the mean curvature flow and LL-index of self-shrinkers.
result No stable two-dimensional self-shrinker in R3\mathbb{R}^3 exists without properness.