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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.

169,291 papers · 148 categories

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25.0%50.0%75.0%100.0% · Feb 199419922001200920182026
48 results for Conformal Mapping

New theorem proves convergence of various discrete conformal structures to conformal maps.

problem Proving convergence of discrete conformal structures to conformal maps.
method General theorem using piecewise linear discrete conformal mappings and Riemannian barycentric coordinates.
result Discrete conformal mappings converge to conformal maps under certain conditions.

Quantifies uniqueness of conformal-harmonic maps on 4-manifolds.

problem Quantifying uniqueness of conformal-harmonic maps on 4-manifolds.
method Proves a quantitative uniqueness result using convexity and second order Hardy inequality.
result Proves a version of second order Hardy inequality on manifolds.

Introduces conformal Riemannian morphisms generalizing various Riemannian concepts.

problem None explicitly stated; generalizing Riemannian concepts.
method Introduces conformal Riemannian morphisms and proves properties.
result Every injective conformal Riemannian morphism is an injective conformal immersion, and similar results for surjective and bijective cases.

Conformal harmonic maps from a 4-dimensional conformal manifold to a Riemannian manifold are maps satisfying a certain conformally invariant fourth order equation. We prove a general existence result for conformal harmonic maps, analogous to the Eells-Sampson theorem for harmonic maps. The proof uses a geometric flow a…

2011-12-28abs ↗pdf ↗

Inspired by the all-important conformal invariance of harmonic maps on two-dimensional domains, this article studies the relationship between biharmonicity and conformality. We first give a characterization of biharmonic morphisms, analogues of harmonic morphisms investigated by Fuglede and Ishihara, which, in particul…

2008-04-10abs ↗pdf ↗

The article explores constructing biharmonic and conformal biharmonic maps to spheres.

problem Constructing biharmonic and conformal biharmonic maps to spheres.
method Geometric algorithm to render harmonic maps biharmonic or conformally biharmonic.
result Explicit critical points for conformal-biharmonic maps between spheres are found.

The study classifies conformal biharmonic and k-polyharmonic maps between space forms.

problem Classifying conformal biharmonic and k-polyharmonic maps between space forms.
method Proving conditions for proper biharmonic and k-polyharmonic maps between space forms.
result Proper k-polyharmonic conformal maps exist if and only if the dimension is 2k.

Let (M,g)(M, g), (N,h)(N, h) be compact Riemannian manifolds without boundary, and let ff be a smooth map from MM into NN. We consider a covariant symmetric tensor TfT_f == fh1mdf2g{\displaystyle f^*h - \frac{1}{m} |df|^2 g}, where fhf^*h denotes the pull-back metric of hh by ff. The tensor TfT_f vanishes if and only if the …

2012-09-19abs ↗pdf ↗

The paper proves convergence of discrete maps to Riemann mappings for polyhedral surfaces.

problem Discrete conformal geometry of polyhedral surfaces.
method Establishing rigidity for hexagonal triangulations and estimating quasiconformal constants.
result Discrete conformal maps converge to Riemann mappings for Jordan domains.

Quaternionic analysis proves minimum of Willmore functional on Riemann surfaces.

problem Finding minimum of Willmore functional on Riemann surfaces.
method Extending quaternionic analysis to weakly conformal maps and using Darboux transformation.
result Minimum of Willmore functional on Riemann surfaces is achieved by weakly conformal maps.

This paper characterizes Willmore surfaces in spheres using harmonic maps.

problem Characterizing Willmore surfaces in spheres using harmonic maps.
method Analyzes the conformal Gauss map of Willmore surfaces and its properties.
result Generically, strongly conformally harmonic maps from Riemann surfaces to the target space are associated with Willmore surfaces in spheres.

The study of conformal biharmonic maps and hypersurfaces in various spaces.

problem Understanding the properties and behavior of conformal biharmonic maps and hypersurfaces.
method Investigation of the conformal bienergy functional and its critical points, focusing on hypersurfaces in spheres and hyperbolic spaces.
result Identification and classification of conformal biharmonic hypersurfaces in spheres and hyperbolic spaces, including stability analysis.

A super-conformal map and a minimal surface are factored into a product of two maps by modeling the Euclidean four-space and the complex Euclidean plane on the set of all quaternions. One of these two maps is a holomorphic map or a meromorphic map. These conformal maps adopt properties of a holomorphic function or a me…

2012-08-27abs ↗pdf ↗

Study of conformal mappings in pseudo-Finsler spaces, extending results from pseudo-Riemannian geometry.

problem Understanding conformal mappings in pseudo-Finsler spaces and their properties.
method Extending results from pseudo-Riemannian geometry and proposing a technique to reduce problems involving pseudo-Finslerian conformal vector fields.
result Conformal groups of flat pseudo-Finsler spaces can be richer than flat Finslerian and pseudo-Euclidean conformal groups.

This article studies the smoothness of conformal mappings between two Riemannian manifolds whose metric tensors have limited regularity. We show that any bi-Lipschitz conformal mapping or 11-quasiregular mapping between two manifolds with CrC^r metric tensors (r>1r > 1) is a Cr+1C^{r+1} conformal (local) diffeomorphism. …

2012-09-06abs ↗pdf ↗

The paper extends a method for numerical conformal mappings to surfaces using Laplace-Beltrami equations.

problem Computing conformal mappings between Riemannian surfaces.
method Adapting the conjugate function method to Riemannian surfaces using hphp-adaptive finite element methods.
result Highly accurate numerical computations of conformal mappings on surfaces, including complex geometries.

The identity map of certain Einstein manifolds is stable in both energy and bienergy.

problem Stability of the identity map in Einstein manifolds.
method Investigation of conformal-biharmonic stability compared to harmonic stability.
result The conformal-biharmonic index coincides with the harmonic index, except for the 4D Euclidean sphere.

Discrete conformal maps on surfaces with vertex decorations are studied.

problem Discrete conformal equivalence for decorated piecewise Euclidean surfaces.
method Intimate relationship between decorated PE-surfaces, canonical tessellations of hyperbolic surfaces, and convex hyperbolic polyhedra; concave variational principle.
result Proof of discrete uniformization theorem for decorated PE-surfaces.

Develops a unified framework for computing n-dimensional quasi-conformal mappings.

problem Effective mapping methods for higher-dimensional objects with geometric constraints.
method Variational model integrating quasi-conformal distortion, volumetric distortion, and other factors.
result Existence and efficient numerical methods for solving the optimization problem.

New framework for better mapping of surfaces onto ellipsoids.

problem Mapping genus-0 closed surfaces onto spheres results in large distortion.
method Combining conformal and quasi-conformal mappings onto ellipsoids.
result Achieved a variety of ellipsoidal parameterizations with bijectivity.

The paper explores geometric properties of Riemannian warped product maps and their curvature.

problem Investigating the geometric properties of Riemannian warped product maps.
method The approach involves establishing conditions for geodesics, deriving curvature tensors, and examining various types of maps.
result Derivation of integral formula for scalar curvature of conformal Riemannian warped product maps.

We establish a connection between two previously unrelated topics: a particular discrete version of conformal geometry for triangulated surfaces, and the geometry of ideal polyhedra in hyperbolic three-space. Two triangulated surfaces are considered discretely conformally equivalent if the edge lengths are related by s…

2010-05-15abs ↗pdf ↗

This paper is devoted to the study of the conformal spectrum (and more precisely the first eigenvalue) of the Laplace-Beltrami operator on a smooth connected compact Riemannian surface without boundary, endowed with a conformal class. We give a constructive proof of a critical metric which is smooth except at some coni…

2010-07-19abs ↗pdf ↗

We review the map between hypercomplex manifolds that admit a closed homothetic Killing vector (i.e. `conformal hypercomplex' manifolds) and quaternionic manifolds of 1 dimension less. This map is related to a method for constructing supergravity theories using superconformal techniques. An explicit relation between th…

2005-12-04abs ↗pdf ↗

Discrete version of Liouville's theorem for simplicial complexes.

problem Finding equivalent simplicial complexes under discrete conformal equivalence.
method Proving an analogous statement for simplicial complexes, considering combinatorial equivalence and scale factors associated with vertices.
result All discretely conformally equivalent simplicial complexes are combinatorially equivalent.