David Ruiz

activity

20182024

most citedNearby Cycle Sheaves for Symmetric Pairs

10 citations · 11 across the 5 of their papers we have counts for

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4 papers · 1 filter

math.AP2024

Nontrivial solutions to the relative overdetermined torsion problem in a cylinder

Filomena Pacella, David Ruiz, Pieralberto Sicbaldi

Given a bounded regular domain $ω \subset R^{N - 1}$ and the half-cylinder $Σ = ω \times (0, + \infty)$ , we consider the relative overdetermined torsion problem in $Σ$ , i.e. \[\l…

math.AP2023★ 1 cited

A Schiffer-type problem for annuli with applications to stationary planar Euler flows

Alberto Enciso, Antonio J. Fernández, David Ruiz +1

If on a smooth bounded domain $Ω \subset R^{2}$ there is a nonconstant Neumann eigenfunction $u$ that is locally constant on the boundary, must $Ω$ be a disk or an annulus? Th…

math.AP2022

Overdetermined elliptic problems in nontrivial contractible domains of the sphere

David Ruiz, Pieralberto Sicbaldi, Jing Wu

In this paper, we prove the existence of nontrivial contractible domains $Ω \subset S^{d}$ , $d \geq 2$ , such that the overdetermined elliptic problem \begin{equation*} \begin{…

math.AP2021

Conformal metrics of the disk with prescribed Gaussian and geodesic curvatures

David Ruiz

This paper is concerned with the existence of conformal metrics of the disk with prescribed Gaussian and geodesic curvatures. Being more specific, given nonnegative smooth function…