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We prove that evolution families on complex complete hyperbolic manifolds are in one to one correspondence with certain semicomplete non-autonomous holomorphic vector fields, providing the solution to a very general Loewner type…

Complex Variables · Mathematics 2008-07-11 Filippo Bracci , Manuel D. Contreras , S. Diaz-Madrigal

We present the general theory of curves in conformal geometry using tractor calculus. This primarily involves a tractorial determination of distinguished parametrizations and relative and absolute conformal invariants of generic curves. The…

Differential Geometry · Mathematics 2018-05-02 Josef Šilhan , Vojtěch Žádník

The Legendre curve in the unit tangent bundle over Euclidean plane is a plane curve with a moving frame. We have the (Legendre) curvature of the Legendre curve, and the existence and uniqueness theorems for the curvature are valid. In this…

Differential Geometry · Mathematics 2026-04-10 Nozomi Nakatsuyama , Masatomo Takahashi , Minoru Yamamoto

Let $S$ be a complete flat surface, such as the Euclidean plane. We obtain direct characterizations of the connected components of the space of all curves on $S$ which start and end at given points in given directions, and whose curvatures…

Geometric Topology · Mathematics 2016-02-11 Nicolau C. Saldanha , Pedro Zühlke

In this paper, we consider the self-affinity of planar curves. It is regarded as an important property to characterize the log-aesthetic curves which have been studied as reference curves or guidelines for designing aesthetic shapes in CAD…

Differential Geometry · Mathematics 2024-07-25 Shun Kumagai , Kenji Kajiwara

In this paper, we provide a framework of estimates for describing 2D scaling limits by Schramm's SLE curves. In particular, we show that a weak estimate on the probability of an annulus crossing implies that a random curve arising from a…

Mathematical Physics · Physics 2015-06-15 Antti Kemppainen , Stanislav Smirnov

We prove a comparison theorem for the isoperimetric profiles of simple closed curves evolving by the normalized curve shortening flow: If the isoperimetric profile of the region enclosed by the initial curve is greater than that of some…

Differential Geometry · Mathematics 2015-03-19 Ben Andrews , Paul Bryan

We study the curvature flow of planar nonconvex lens-shaped domains, considered as special symmetric networks with two triple junctions. We show that the evolving domain becomes convex in finite time; then it shrinks homothetically to a…

Differential Geometry · Mathematics 2009-06-02 G. Bellettini , M. Novaga

Self-similar curves arise naturally as the tension-free equilibrium states of conformally invariant bending energies. The simplest example is the M\"obius invariant conformal arc-length on planar curves, dependent on the Frenet curvature…

Exactly Solvable and Integrable Systems · Physics 2020-01-27 Jemal Guven , Gregorio Manrique

This article is meant to serve as a guide to recent developments in the study of the scaling limit of critical models. These new developments were made possible through the definition of the Stochastic Loewner Evolution (SLE) by Oded…

Mathematical Physics · Physics 2007-05-23 Wouter Kager , Bernard Nienhuis

In this paper, we consider the curvature strict positivity of direct image bundles (vector bundles) associated to a strictly pseudoconvex family of bounded domains.The main result is that the curvature of the direct image bundle associated…

Complex Variables · Mathematics 2024-09-20 Xiangsen Qin

In this paper, we study a family of curves on $S^2$ that defines a two-dimensional smooth projective plane. We use curve shortening flow to prove that any two-dimensional smooth projective plane can be smoothly deformed through a family of…

Analysis of PDEs · Mathematics 2013-08-19 Yu-Wen Hsu

Loewner Theory, based on dynamical viewpoint, is a powerful tool in Complex Analysis, which plays a crucial role in such important achievements as the proof of famous Bieberbach's conjecture and well-celebrated Schramm's Stochastic Loewner…

Complex Variables · Mathematics 2010-11-19 Manuel D. Contreras , Santiago Diaz-Madrigal , Pavel Gumenyuk

In this paper, we prove that the closure of a bounded pseudoconvex domain, which is spirallike with respect to a globally asymptotic stable holomorphic vector field, is polynomially convex. We also provide a necessary and sufficient…

Complex Variables · Mathematics 2023-07-12 Sanjoy Chatterjee , Sushil Gorai

It is known that any subharmonic quadrature domain in two dimensions satisfies a natural inner ball condition, in other words there is a specific upper bound on the curvature of the boundary. This result directly applies to free boundaries…

Analysis of PDEs · Mathematics 2011-12-21 Björn Gustafsson , Makoto Sakai

The deltoid curve in R 2 is the boundary of a domain on which there exist probability measures and orthogonal polynomials for theses measures which are eigenvec-tors of diffusion operators. As such, they may be considered as a two…

Probability · Mathematics 2015-03-25 Dominique Bakry , Olfa Zribi

This paper is devoted to the study of convergence of sequences of solutions to the constant mean curvature H equation. The convergence domain is defined. The main Theorem characterizes the complement of this convergence domain: it shows…

Differential Geometry · Mathematics 2007-05-23 Laurent Mazet

We consider a mean curvature flow in a cone, that is, a hypersurface in a cone which moves toward the opening with normal velocity equaling to the mean curvature, and the contact angle between the hypersurface and the cone boundary being…

Differential Geometry · Mathematics 2019-07-29 Bendong Lou

We complete the proof of a theorem we announced and partly proved in [Math. Nachr. 271 (2004), 69-90, math.AG/0111299]. The theorem concerns a family of curves on a family of surfaces. It has two parts. The first was proved in that paper.…

Algebraic Geometry · Mathematics 2022-08-03 Steven Kleiman , Ragni Piene

The main objective of this paper is to show that balls under invariant metrics on hyperbolic planar domains are finitely-connected. As applications, we give new and transparent proofs of classical results on conformal mappings of planar…

Complex Variables · Mathematics 2025-02-04 Bharathi Thiruvengadam , Jaikrishnan Janardhanan