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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.

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25.0%50.0%75.0%100.0% · Feb 199419922001200920182026
48 results for p-harmonic mappings

Sharp inequality for pp-harmonic maps with new optimal constant.

problem Deriving the sharp vectorial Kato inequality for pp-harmonic mappings.
method Analyzing the inequality for pp-harmonic mappings and comparing with scalar valued cases.
result Established the optimal constant for pp-harmonic maps and enhanced the range of pp values for regularity.

The paper estimates gradients and proves Liouville theorems for p-harmonic maps.

problem Estimating gradients and proving Liouville theorems for p-harmonic maps.
method Obtained an LqL^q gradient estimate for pp-harmonic maps, derived from which a Liouville type result was obtained.
result Established a gradient estimate and Liouville theorem for pp-harmonic maps.

The study proves smoothness and estimates for pp-harmonic mappings between Riemannian manifolds.

problem Smoothness and estimates for pp-harmonic mappings between Riemannian manifolds.
method Analyzing stationary and minimizing pp-harmonic mappings with specific curvature conditions.
result Smoothness and estimates for pp-harmonic mappings under certain curvature conditions.

The paper proves a Liouville theorem for a specific type of harmonic maps on foliated manifolds.

problem Investigating harmonic maps on foliated Riemannian manifolds.
method First variational formulas, generalized Weitzenböck type formula, and Liouville type theorem for (F,F)p(\mathcal F,\mathcal F')_{p}-harmonic maps.
result Established a Liouville type theorem for (F,F)p(\mathcal F,\mathcal F')_{p}-harmonic maps.

We prove that, in general, given a pp-harmonic map F:MNF:M\to N and a convex function H:NRH:N\to\mathbb{R}, the composition HFH\circ F is not pp-subharmonic. By assuming some rotational symmetry on manifolds and functions, we reduce the problem to an ordinary differential inequality. The key of the proof is an asymptotic…

2009-04-29abs ↗pdf ↗

We introduce and study an approximate solution of the p-Laplace equation, and a linearlization LεL_ε of a perturbed p-Laplace operator. By deriving an LεL_ε-type Bochner's formula and a Kato type inequality, we prove a Liouville type theorem for weakly p-harmonic functions with finite p-energy on a complete noncompact …

2012-11-13abs ↗pdf ↗

Researchers extend regularity of pp-harmonic maps into spheres for a new range of pp.

problem Establishing regularity of pp-harmonic maps for a broader range of pp.
method Combining Morrey's methods with Hardt and Lin's Extension Theorem, and proving a sharp Kato inequality.
result Regularity for p[2.961,3]p \in [2.961, 3] and p[2,p0]p \in [2, p_0] with p02.366p_0 \approx 2.366.

The paper investigates Liouville type theorems for various harmonic forms on Riemannian manifolds.

problem Investigating Liouville type properties of harmonic forms on Riemannian manifolds.
method Normalized integral Ricci curvature and BiRic curvature.
result Established Liouville theorems for pp-harmonic function, pp-harmonic 1 form, and harmonic qq form (with q2q \geq 2).

We prove a general comparison result for homotopic finite pp-energy C1C^{1} pp-harmonic maps u,v:MNu,v:M\to N between Riemannian manifolds, assuming that MM is pp-parabolic and NN is complete and non-positively curved. In particular, we construct a homotopy through constant pp-energy maps, which turn out to be pp-ha…

2010-11-16abs ↗pdf ↗

We study a second order ordinary differential equation corresponding to rotationally symmetric pp-harmonic maps. We show unique continuation and Liouville's type theorems for positive solutions. We discuss the existence of bounded positive entire solutions. Asymptotic properties of the positive solutions are investiga…

1996-04-23abs ↗pdf ↗

The study examines the behavior of pp-harmonic maps to S1S^1 as pp approaches 2.

problem Understanding the asymptotic behavior of pp-harmonic maps as pp tends to 2.
method Analyzing the convergence of singular sets and stationary varifolds.
result The singular sets of pp-harmonic maps converge to a stationary rectifiable varifold of density 2π2\pi.

In p-harmonic coordinates, Hölder metrics lead to useful gauge conditions in conformal geometry.

problem Establishing useful gauge conditions for regularity in conformal geometry.
method Development of p-harmonic coordinates on Riemannian manifolds with Hölder continuous metrics.
result Conformal mappings between manifolds with Hölder metrics are C1+αC^{1+α} regular.

Proves existence of maximizers for eigenvalue optimization on manifolds.

problem Eigenvalue optimization on Riemannian manifolds of dimension m3m \geq 3.
method Use of topological tensor products to analyze eigenvalue functionals.
result Absolutely continuous maximizers are induced by pp-harmonic maps into spheres.

Harmonic morphisms and p-harmonic functions constructed on symmetric spaces.

problem Constructing harmonic morphisms and p-harmonic functions on symmetric spaces.
method Using Cartan embedding and related maps to relate tension field and conformality operator.
result Simple formulae relating tension field and conformality operator on symmetric spaces to those on their images.

Equivalence of conformal maps proved in sub-Riemannian manifolds.

problem Equivalence of conformal maps between sub-Riemannian manifolds.
method Regularity theory for subelliptic p-Laplacian operators, sub-Riemannian p-harmonic coordinates, propagation of regularity.
result 1-quasiconformal maps are smooth on contact manifolds.

In this note, we investigate estimates of the Morse index for F-harmonic maps into spheres, our results extend partially those obtained in ([14]) and ([15]) for harmonic and p-harmonic maps.

2012-09-29abs ↗pdf ↗

In this two papers we deal with the relative homotopy Dirichlet problem for p-harmonic maps from compact manifolds with boundary to manifolds of non-positive sectional curvature. Notably, we give a complete solution to the problem in case the target manifold is either compact and a new proof in case it is rotationally …

2012-04-24abs ↗pdf ↗

In this note, we show that some F-harmonic maps into spheres are global maxima of the variations of their energy functional on the conformal group of the sphere. Our result extends partially those obtained in [15] and [17] for harmonic and p-harmonic maps.

2012-10-05abs ↗pdf ↗

The paper studies geometric properties of Φ(3)Φ_{(3)}-harmonic maps and proves Liouville type results.

problem Exploring geometric properties of Φ(3)Φ_{(3)}-harmonic maps.
method Unified geometric analytic methods, first and second variation formulas, stress-energy tensor, conservation law, monotonicity formula, asymptotic assumption, extrinsic average variational method.
result Proves Liouville type results for Φ(3)Φ_{(3)}-harmonic maps.

Constructs explicit pp-harmonic functions on Grassmannians and flag manifolds.

problem Finding proper pp-harmonic functions on Grassmannians and flag manifolds.
method Using the method of eigenfamilies to construct explicit functions.
result Explicit complex-valued proper pp-harmonic functions on compact real Grassmannians and non-descending functions on real flag manifolds.

Let pp be a real number greater number greater than one. Suppose that a graph GG of bounded degree is quasi-isometric with a Riemannian manifold MM with certain properties. Under these conditions we will show that the pp-harmonic boundary of GG is homeomorphic to the pp-harmonic boundary of MM. We will also prov…

2010-02-04abs ↗pdf ↗

The paper provides new examples of pp-harmonic functions using isoparametric foliations.

problem Lack of explicit solutions to the pp-Laplace equation in higher dimensions.
method Use of isoparametric polynomials to generate pp-harmonic and biharmonic functions.
result First examples of rational and algebraic pp-harmonic functions are produced.

Let pp be a real number greater than one and let GG be a connected graph of bounded degree. In this paper we introduce the pp-harmonic boundary of GG. We use this boundary to characterize the graphs GG for which the constant functions are the only pp-harmonic functions on GG. It is shown that any continuous func…

2008-06-18abs ↗pdf ↗

The paper proves vanishing properties of pp-harmonic \ell-forms on various Riemannian manifolds.

problem Vanishing properties of pp-harmonic \ell-forms on Riemannian manifolds.
method The approach involves studying complete non-compact immersed submanifolds, Riemannian manifolds with weighted Poincaré inequality, and complete simply connected, locally conformally flat Riemannian manifolds.
result The existence of nontrivial pp-harmonic \ell-forms is shown to vanish under certain geometric conditions.

In this article, we study the regularity of minimizing and stationary pp-harmonic maps between Riemannian manifolds. The aim is obtaining Minkowski-type volume estimates on the singular set S(f)={x  s.t.  f is not continuous at x}S(f)=\{x \ \ s.t. \ \ f \text{ is not continuous at } x\}, as opposed to the weaker and non quantitative Hausdorff dimension bo…

2014-09-30abs ↗pdf ↗

New p-harmonic and harmonic morphisms found on Lie groups.

problem Constructing explicit p-harmonic and harmonic morphisms on Lie groups.
method Using the method of eigenfamilies to construct explicit complex-valued p-harmonic functions and harmonic morphisms.
result Explicit complex-valued p-harmonic functions and harmonic morphisms constructed on non-compact classical Lie groups.

\infty-Harmonic maps are a generalization of \infty-harmonic functions. They can be viewed as the limiting cases of p-harmonic maps as p goes to infinity. In this paper, we give complete classifications of linear and quadratic \infty-harmonic maps from and into a sphere, quadratic \infty-harmonic maps between E…

2007-10-30abs ↗pdf ↗

Derives monotonic quantities for pp-harmonic functions on manifolds.

problem Understanding pp-harmonic functions on manifolds with nonnegative scalar curvature.
method Derives local and global monotonic quantities associated with pp-harmonic functions.
result Establishes inequalities relating mass, capacity, and Willmore functional.

The abstract discusses p-harmonic forms and their geometric properties, proving new theorems about Lp-cohomology.

problem The abstract tackles the geometric properties of p-harmonic forms and their role in Lp-cohomology.
method The approach involves using p-harmonic and p-coclosed forms to reprove vanishing theorems and provide injectivity theorems.
result The main finding is the reproof of vanishing theorems and the provision of injectivity theorems for Lp-cohomology.

Constructs explicit harmonic functions and morphisms on complex and quaternionic Grassmannians.

problem Creating explicit solutions for pp-harmonic functions and harmonic morphisms.
method Using joint eigenfunctions of the Laplace-Beltrami and conformality operators.
result Induces solutions on dual non-compact Riemannian symmetric spaces.

New method constructs explicit pp-harmonic functions on Lie groups.

problem Constructing proper pp-harmonic functions on Lie groups.
method Employing complex isoparametric functions to devise a general method.
result First explicit proper pp-harmonic functions on RmRn\mathbb{R}^m \ltimes \mathbb{R}^n and RmH2n+1\mathbb{R}^m \ltimes \mathrm{H}^{2n+1}.

Researchers create explicit p-harmonic functions on specific symmetric spaces.

problem Constructing explicit p-harmonic functions on compact Riemannian symmetric spaces.
method Explicit construction of complex-valued p-harmonic functions on specific symmetric spaces and their duals.
result Explicit p-harmonic functions constructed on SU(n)/SO(n), Sp(n)/U(n), SO(2n)/U(n), SU(2n)/Sp(n) and their duals.

Derives new monotone quantities for p-harmonic functions on asymptotically flat 3-manifolds.

problem Estimating the mass of 3-manifolds with non-negative scalar curvature and minimal boundary.
method Derives monotone quantities for p-harmonic functions and applies them to derive a sharp mass-capacity estimate.
result Derives a sharp mass-capacity estimate relating the ADM mass of a 3-manifold to the p-capacity of its boundary.

Estimates for harmonic functions in curved spaces.

problem Quantifying harmonic functions in curved spaces.
method Quantitative Sobolev estimates for pp-harmonic functions in manifolds with curvature conditions.
result Established a quantitative second order Sobolev estimate for pp-harmonic functions.

Extends strong comparison principle for p-harmonic functions in Carnot-Caratheodory spaces.

problem Proving strong comparison principle for p-harmonic functions in specific geometric settings.
method Extends Bony's propagation of support argument to C^1 solutions of sub-elliptic p-Laplacian.
result Proves strong maximum and comparison principles for p-harmonic functions.