Results 1 to 10 of about 22,484 (73)

Concentration solutions to the singularly prescribed Gaussian and geodesic curvatures problem [PDF]

open access: yesJournal of Differential Equations, 2021
We consider the following Liouville-type equation with exponential Neumann boundary condition: $$ - \tilde u = \varepsilon^2 K(x) e^{2\tilde u}, \quad x\in D, \qquad \frac{\partial \tilde u}{\partial n} + 1 = \varepsilon (x) e^{\tilde u}, \quad x\in\partial D, $$ where $D\subset \mathbb R^2$ is the unit disc, $\varepsilon^2 K(x)$ and $\varepsilon (
Wang, Liping, Zhao, Chunyi
openaire   +3 more sources

A problem of prescribing Gaussian curvature on $S^2$ [PDF]

open access: yesProceedings of the American Mathematical Society, 2001
Summary: A class of functions \(K(x)=K(x_1,x_2,x_3)\) and the corresponding solutions of \[ \Delta u + K(x)e^{2u}=1, \quad x\in S^2, \] are obtained as a special case of the solutions of \[ \Delta^mu+K(x)e^{au}=f(x),\qquad x=(x_1,x_2,\dots,x_n)\in \mathbb{R}^n, \] where \(\Delta^m\) is defined as \(\Delta(\Delta^{m-1})\).
Goyal, Sulbha, Goyal, Vinod
openaire   +2 more sources

A Note on the Problem of Prescribing Gaussian Curvature on Surfaces [PDF]

open access: yesTransactions of the American Mathematical Society, 1995
The paper treats the problem of prescribing the Gaussian curvature on a surface of genus at least two. Let \((M,g)\) be a closed connected 2- dimensional Riemannian manifold with Gaussian curvature \(k\). If \(g' = e^{2n} \cdot g\) is a conformally equivalent metric, then its curvature is given by \(k' = e^{-2n}\) \((k - \Delta n)\).
Ding, Wei-Yue, Liu, Jia-Quan
openaire   +2 more sources

A flow approach to the prescribed Gaussian curvature problem in $\mathbb{H}^{n+1}$

open access: yes, 2022
In this paper, we study the following prescribed Gaussian curvature problem $$K=\frac{\tilde{f}(θ)}{ϕ(ρ)^{α-2}\sqrt{ϕ(ρ)^2+|\bar{\nabla}ρ|^2}},$$ a generalization of the Alexandrov problem ($α=n+1$) in hyperbolic space, where $\tilde{f}$ is a smooth positive function on $\mathbb{S}^{n}$, $ρ$ is the radial function of the hypersurface, $ϕ(ρ)=\sinhρ$ and
Li, Haizhong, Zhang, Ruijia
openaire   +2 more sources

Existence and non existence results for the singular Nirenberg problem [PDF]

open access: yes, 2016
In this paper we study the problem, posed by Troyanov (Trans AMS 324: 793–821, 1991), of prescribing the Gaussian curvature under a conformal change of the metric on surfaces with conical singularities.
DE MARCHIS, Francesca   +1 more
core   +1 more source

Minimal resonances in annular non-Euclidean strips [PDF]

open access: yes, 2010
Differential growth processes play a prominent role in shaping leaves and biological tissues. Using both analytical and numerical calculations, we consider the shapes of closed, elastic strips which have been subjected to an inhomogeneous pattern of ...
Bryan Gin-ge Chen   +6 more
core   +5 more sources

Isolated singularities of the prescribed mean curvature equation in Minkowski $3$-space [PDF]

open access: yes, 2017
We give a classification of non-removable isolated singularities for real analytic solutions of the prescribed mean curvature equation in Minkowski $3 ...
Gálvez, José A.   +2 more
core   +2 more sources

Prescribing Gaussian and Geodesic Curvature on Disks

open access: yesAdvanced Nonlinear Studies, 2018
In this paper, we consider the problem of prescribing the Gaussian and geodesic curvature on a disk and its boundary, respectively, via a conformal change of the metric.
Cruz-Blázquez Sergio, Ruiz David
doaj   +1 more source

Compactness issues and bubbling phenomena for the prescribed Gaussian curvature equation on the Torus [PDF]

open access: yes, 2014
In the spirit of the paper "Large conformal metrics of prescribed Gauss curvature on surfaces of higher genus" by Borer-Galimberti-Struwe, where we dealt with the case of a closed Riemann surface $(M,g_0)$ of genus greater than one, here we study the ...
Galimberti, Luca
core   +1 more source

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