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We introduce the notion of twisted gravitating vortex on a compact Riemann surface. If the genus of the Riemann surface is greater than 1 and the twisting forms have suitable signs, we prove an existence and uniqueness result for suitable…

Differential Geometry · Mathematics 2020-10-07 Chengjian Yao

We consider conformal deformations within a class of incomplete Riemannian metrics which generalize conic orbifold singularities by allowing both warping and any compact manifold (not just quotients of the sphere) to be the "link" of the…

Differential Geometry · Mathematics 2021-07-06 Thalia Jeffres , Julie Rowlett

Cone spherical metrics are conformal metrics with constant curvature one and finitely many conical singularities on compact Riemann surfaces. By using Strebel differentials as a bridge, we construct a new class of cone spherical metrics on…

Complex Variables · Mathematics 2020-06-25 Jijian Song , Yiran Cheng , Bo Li , Bin Xu

We prove that the isoperimetric inequalities in the euclidean and hyperbolic plane hold for all euclidean, respectively hyperbolic, cone-metrics on a disk with singularities of negative curvature. This is a discrete analog of the theorems…

Differential Geometry · Mathematics 2014-09-29 Ivan Izmestiev

We show that, on an oriented compact surface, two sufficiently $C^2$-close Riemannian metrics with strictly convex boundary, no conjugate points, hyperbolic trapped set for their geodesic flows, and same marked boundary distance, are…

Differential Geometry · Mathematics 2018-05-08 Colin Guillarmou , Marco Mazzucchelli

In this paper we give a new, and shorter, proof of Huber's theorem which affirms that for a connected open Riemann surface endowed with a complete conformal Riemannian metric, if the negative part of its Gaussian curvature has finite mass,…

Differential Geometry · Mathematics 2022-12-16 Chen Zhou

A conformal metric $g$ with constant curvature one and finite conical singularities on a compact Riemann surface $\Sigma$ can be thought of as the pullback of the standard metric on the 2-sphere by a multi-valued locally univalent…

Differential Geometry · Mathematics 2016-01-20 Qing Chen , Wei Wang , Yingyi Wu , Bin Xu

This article considers the existence and regularity of Kahler-Einstein metrics on a compact Kahler manifold $M$ with edge singularities with cone angle $2\pi\beta$ along a smooth divisor $D$. We prove existence of such metrics with…

Differential Geometry · Mathematics 2015-12-01 T. Jeffres , Rafe Mazzeo , Yanir A. Rubinstein

We establish a correspondence on a Riemann surface between hyperbolic metrics with isolated singularities and bounded projective functions whose Schwarzian derivatives have at most double poles and whose monodromies lie in ${\rm…

Differential Geometry · Mathematics 2019-01-11 Bo Li , Yu Feng , Long Li , Bin Xu

We obtain necessary conditions for the existence of special K\"ahler structures with isolated singularities on compact Riemann surfaces. We prove that these conditions are also sufficient in the case of the Riemann sphere and, moreover, we…

Differential Geometry · Mathematics 2020-03-11 Andriy Haydys , Bin Xu

J. Nitsche proved that an isolated singularity of a conformal hyperbolic metric is either a conical singularity or a cusp one. We prove by developing map that there exists a complex coordinate $z$ centered at the singularity where the…

Differential Geometry · Mathematics 2018-09-12 Yu Feng , Yiqian Shi , Bin Xu

In this short paper we show a sufficient condition for the solvability of the Dirichlet problem at infinity in Riemannian cones (as defined below).This condition is related to a celebrated result of Milnor that classifies parabolic…

Differential Geometry · Mathematics 2021-11-23 Jean C. Cortissoz

We construct flat metrics in a given conformal class with prescribed singularities of real orders at marked points of a closed real surface. The singularities can be small conical, cylindrical, and large conical with possible translation…

Differential Geometry · Mathematics 2011-01-13 Sergiu Moroianu

Among metrics of constant positive curvature on a punctured compact Riemann surface with conical singularities at the punctures, dihedral monodromy means that the action of the monodromy group globally preserves a pair of antipodal points.…

Geometric Topology · Mathematics 2023-06-06 Quentin Gendron , Guillaume Tahar

We prove the existence of non-positively curved K\"ahler-Einstein metrics with cone singularities along a given simple normal crossing divisor on a compact K\"ahler manifold, under a technical condition on the cone angles, and we also…

Complex Variables · Mathematics 2016-05-10 Frédéric Campana , Henri Guenancia , Mihai Păun

In this paper, we extend the existence and regularity theorems for K\"ahler-Einstein metrics having conic singularities along a simple normal crossing divisor to the case of normal crossing divisor, i.e. when components of the divisor are…

Differential Geometry · Mathematics 2015-03-03 Henri Guenancia

We study the existence of conformal metrics on non-compact Riemannian manifolds with non-compact boundary, which are complete as metric spaces and have negative constant scalar curvature in the interior and negative constant mean curvature…

Differential Geometry · Mathematics 2022-09-02 Juan Alcon Apaza , Sergio Almaraz

Given a parabolic geometry, it is sometimes possible to find special metrics characterised by some invariant conditions. In conformal geometry, for example, one asks for an Einstein metric in the conformal class. Einstein metrics have the…

Differential Geometry · Mathematics 2022-06-07 Michael Eastwood , Lenka Zalabová

We prove an existence theorem for Asymptotically Conical Ricci Flat Kahler metrics in $\mathbb{C}^2$ with cone singularities along a smooth complex curve. These metrics are expected to arise as blow up limits of non collapsed sequences of…

Differential Geometry · Mathematics 2021-10-26 Martin de Borbon

In this paper, we construct a stable parabolic Higgs bundle of rank two, which corresponds to the uniformization associated with a conformal hyperbolic metric on a compact Riemann surface $\overline{X}$ with prescribed singularities. This…

Differential Geometry · Mathematics 2025-02-28 Yu Feng , Bin Xu