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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.

169,291 papers · 148 categories

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48 results for almost area-minimizing currents

New epiperimetric inequality for cones with improved regularity results.

problem Regularity of almost area-minimizing currents at singular points.
method Flowing in radial direction for cones with isolated singularities.
result New ε-regularity result for almost area-minimizing currents.

Unique tangent cones found for boundary points of 2D almost-minimizing currents.

problem Characterizing boundary points of two-dimensional almost-minimizing currents.
method Combining epiperimetric inequality and almost-monotonicity formula.
result Tangent cones at singular boundary points are unique.

This is the second paper of a series of three on the regularity of higher codimension area minimizing integral currents. Here we perform the second main step in the analysis of the singularities, namely the construction of a center manifold, i.e. an approximate average of the sheets of an almost flat area minimizing cu…

2013-06-05abs ↗pdf ↗

Study on singularities in area-minimizing currents, proving unique tangent cones and rectifiability.

problem Understanding singularities in area-minimizing currents.
method Fine excess decay theorems and almost monotonicity of a frequency function.
result Unique tangent cones and countably (m2)(m-2)-rectifiable singular set.

Paper proves existence of area-minimizing submanifolds on almost any manifold with fractal singular sets.

problem Existence of area-minimizing submanifolds with fractal singular sets.
method Constructing and proving existence on almost any smooth manifold.
result Existence of area-minimizing submanifolds with fractal singular sets on almost any smooth manifold.

Study improves boundary smoothness for area-minimizing currents with complex boundaries.

problem Boundary regularity for area-minimizing currents with arbitrary multiplicity.
method Generalization of Allard's boundary regularity theorem.
result Derivation of structural consequences from the generalized theorem.

This is the last of a series of three papers in which we give a new, shorter proof of a slightly improved version of Almgren's partial regularity of area minimizing currents in Riemannian manifolds. Here we perform a blow-up analysis deducing the regularity of area minimizing currents from that of Dir-minimizing multip…

2013-06-05abs ↗pdf ↗

Partial boundary regularity for area-minimizing currents at tangential boundary points.

problem Boundary regularity of co-dimension one area-minimizing currents.
method Proof closely follows Hardt and Simon's boundary regularity result.
result Partial regularity of tangent cones, uniqueness of tangent cone.

Study on flat singularities of area-minimizing currents in codimension one.

problem Understanding flat singularities of area-minimizing currents in codimension one.
method Analyzing the structure of two-dimensional mod(q) area-minimizing currents near flat singularities.
result Currents are C1,αC^{1,α}-perturbations of radially homogeneous special multiple-valued functions.

New results show area-minimizing surfaces have fewer singularities than expected.

problem Understanding the singularities of area-minimizing surfaces in homology classes.
method Sharp regularity theorem for area-minimizing currents in finite coefficient homology.
result For large vv, area-minimizing mod vv currents are integral currents with a singular set of codimension at least 2.

Study proves uniqueness of tangent cones for area-minimizing currents in higher codimensions.

problem Understanding the fine structure of singular points in area-minimizing currents.
method Analysis of tangent cones and application of previous work.
result Uniqueness of tangent cones at Hm2\mathcal{H}^{m-2}-a.e. points in the support of area-minimizing currents.

Rectifies flat singular points for area-minimizing currents.

problem Understanding singularities of area-minimizing currents.
method Analyzes countably (m2)(m-2)-rectifiable singular points with flat tangent cones.
result The set of singular density-QQ points is countably (m2)(m-2)-rectifiable and has finite upper Minkowski content.

The study bounds Hausdorff measure of flat singular points in area-minimizing currents.

problem Bounding Hausdorff measure of flat singular points in area-minimizing currents.
method Proving locally finite (m2)(m-2)-dimensional Hausdorff measure and Minkowski content bounds.
result The set of flat singular points has locally finite (m2)(m-2)-dimensional Hausdorff measure.

Study on flat singular points of area-minimizing currents, defining a singularity degree.

problem Understanding the structure of singular points in area-minimizing integral currents.
method Analysis of vanishing sequences of scales around a singular point, defining a singularity degree.
result The singularity degree is independent of the chosen vanishing sequence and has interesting properties.

In a series of papers, including the present one, we give a new, shorter proof of Almgren's partial regularity theorem for area minimizing currents in a Riemannian manifold, with a slight improvement on the regularity assumption for the latter. This note establishes a new a priori estimate on the excess measure of an a…

2013-06-05abs ↗pdf ↗

Study area-minimizing currents with specific boundary properties.

problem Understanding the structure of area-minimizing currents with tangentially immersed boundaries.
method Analyzes nn-dimensional area-minimizing currents with boundary constraints.
result Near the boundary of the current, the structure is either uncontrolled or a union of controlled hypersurfaces.

Rectifies flat singular points of area-minimizing currents with singularity degree > 1.

problem Rectifying flat singular points of area-minimizing currents with singularity degree > 1.
method Subdividing singular points based on singularity degree and proving rectifiability of points with singularity degree > 1.
result The set of points with singularity degree > 1 is (m-2)-rectifiable.

Solves a problem posed by Brezis and Mironescu about least mass of area-minimizing currents.

problem Least mass of area-minimizing currents with a given boundary.
method Demonstrates the value of the least mass and compares it to the infimum of areas of smoothly immersed submanifolds.
result The least mass of area-minimizing currents equals the infimum of areas of smoothly immersed submanifolds with the same boundary.

Study shows unique tangent cones for area-minimizing currents at boundary points.

problem Uniqueness of tangent cones for area-minimizing currents with arbitrary multiplicity.
method Analysis of area minimizing currents in C2C^2 submanifolds with arbitrary boundary multiplicity.
result Tangent cones are unique at density Q/2Q/2 boundary points.

Perturbs area-minimizing hypersurfaces to reduce singular set's dimension.

problem Reduces the dimension of the singular set of area-minimizing hypersurfaces.
method Perturbs a smooth hypersurface to minimize the Minkowski dimension of the singular set.
result The singular set of the perturbed minimizing current has Minkowski dimension less than n-9.

The paper studies graphs minimizing Dirichlet energy with analytic boundaries, confirming a conjecture about singularities.

problem Understanding the singularities of area-minimizing currents with real analytic boundaries.
method Analyzing multi-valued graphs with real analytic interfaces that minimize Dirichlet energy.
result Dirichlet energy-minimizers with analytic boundary singularities are discrete in 2 dimensions, confirming a conjecture by B. White.

Study on high-codimensional minimal surfaces in hyperbolic space.

problem Understanding high-codimensional minimal surfaces in hyperbolic space.
method Investigating asymptotic behavior and boundary regularity of area-minimizing currents.
result Established boundary regularity results for high-codimensional minimal surfaces near their asymptotic boundaries.

The study shows that certain metrics on spheres prevent stable tangent cones for area-minimizing boundaries.

problem Preventing stable tangent cones for area-minimizing boundaries under specific metrics.
method Developed a perturbation theorem and used spectral theory and compactness arguments.
result A residual set of metrics on Sn+1S^{n+1} precludes linearly stable tangent cones for area-minimizing boundaries.

Unique solutions found for Plateau problems in smooth and continuous calibrations.

problem Finding unique solutions to the Plateau problem for specific types of currents.
method Boundary regularity theory for area-minimizing currents and unique continuation argument.
result Every compactly supported smoothly or continuously calibrated integral current is the unique solution to the Plateau problem for its boundary data.

This lecture notes are an expanded version of the course given at the ERC-School on Geometric Measure Theory and Real Analysis, held in Pisa, September 30th - October 30th 2013. The lectures aim to explain the main steps of a new proof of the partial regularity of area minimizing integer rectifiable currents in higher …

2015-01-15abs ↗pdf ↗

Analyzes singularities of area minimizing hypersurfaces modulo p, completing the structure analysis.

problem Analyzing singularities of area minimizing hypersurfaces modulo p.
method Combining epiperimetric inequalities, analysis of homogeneous minimizers, and blow-up procedures.
result Completes the structure analysis of area minimizing hypersurfaces modulo p for all cases.

The paper proves generic transversality and regularity for minimal submanifolds and area-minimizing currents.

problem Transversality and regularity of minimal submanifolds and area-minimizing currents.
method Proves transversality and regularity for generic metrics using Baire category and minimization properties.
result Generic metrics ensure transversality and regularity for minimal submanifolds and area-minimizing currents.

It is well known that in compact local Lipschitz neighborhood retracts in Euclidean space flat convergence for integer rectifiable currents amounts just to weak convergence. In the present paper we extend this result to integral currents in complete metric spaces admitting a local cone type inequality. These include in…

2005-08-03abs ↗pdf ↗

Sharp generalization of boundary regularity for area minimizing currents with arbitrary multiplicity.

problem Boundary regularity of area minimizing currents with multiplicity.
method Sharp generalization of Allard's boundary regularity theorem to higher multiplicity settings.
result The set of density Q/2Q/2 singular boundary points of TT is Hm3\mathcal{H}^{m-3}-rectifiable.

The paper proves existence and partial regularity for Legendrian area-minimizing currents.

problem Existence and partial regularity of Legendrian area-minimizing currents.
method Local minimization and application to the Legendrian Plateau problem.
result Existence and partial regularity of solutions to the Legendrian Plateau problem.

The paper proves prevalent existence and partially determines moduli space of area-minimizing surfaces with fractal singular sets.

problem Existence and moduli space of area-minimizing surfaces with fractal singular sets.
method Proof of prevalent existence, determination of moduli space, refinement of strata.
result Sharp results on moduli space and refinement of strata, showing fractal singularities do not completely dissolve under generic perturbations.

In analogy with Almgren's Theorem for area minimizing currents of general dimension and codimension, we prove that an mm-dimensional semicalibrated current in a (n+m)(n+m)-dimensional C3,ε0C^{3,\varepsilon_0} manifold, semicalibrated by a C2,ε0C^{2,\varepsilon_0} mm-form, has singular set of Hausdorff dimension at most m2m-2.

2015-11-24abs ↗pdf ↗