Results 1 to 10 of about 46 (45)

Singular limiting solutions for elliptic problem involving exponentially dominated nonlinearity and convection term

open access: yesBoundary Value Problems, 2011
Given Ω bounded open regular set of ℝ2 and x1, x2, ..., xm ∈ Ω, we give a sufficient condition for the problem to have a positive weak solution in Ω with u = 0 on ∂Ω, which is singular at each xi as the parameters &#
Abid Imed   +3 more
doaj   +1 more source

Multiplicity results for nonhomogenous elliptic equation involving the generalized Paneitz-Branson operator [PDF]

open access: yes, 2023
Let (M, g) be a compact Riemannian manifold of dimension n ≥ 3 without boundary ∂M, we consider the multiplicity result of solutions of the following nonhomogenous fourth order elliptic equation involving the generalized Paneitz-Branson operator, Pg (u) =
TAHRI, Kamel
core   +1 more source

Almost-complex invariants of families of six-dimensional solvmanifolds

open access: yesComplex Manifolds, 2022
We compute almost-complex invariants h∂¯p,oh_{\bar \partial }^{p,o}, hDolp,oh_{Dol}^{p,o} and almost-Hermitian invariants hδ¯p,oh_{\bar \delta }^{p,o} on families of almost-Kähler and almost-Hermitian 6-dimensional solvmanifolds.
Tardini Nicoletta, Tomassini Adriano
doaj   +1 more source

The extremal problem for Sobolev inequalities with upper order remainder terms.

open access: yes, 2023
Given a smooth compact Riemannian n-manifold (M, g), we prove existence and compactness results of extremal functions for sharp Sobolev inequalities which are closely related to the embed ding of H1,q(M) into L qn/(n−q) (M) where the L q remainder term ...
Lemos, Flávio Almeida   +1 more
core   +1 more source

Existence Results for the Conformal Dirac–Einstein System

open access: yesAdvanced Nonlinear Studies, 2021
We consider the coupled system given by the first variation of the conformal Dirac–Einstein functional. We will show existence of solutions by means of perturbation methods.
Guidi Chiara   +2 more
doaj   +1 more source

Total mean curvatures of Riemannian hypersurfaces

open access: yesAdvanced Nonlinear Studies, 2023
We obtain a comparison formula for integrals of mean curvatures of Riemannian hypersurfaces via Reilly’s identities. As applications, we derive several geometric inequalities for a convex hypersurface Γ\Gamma in a Cartan-Hadamard manifold MM.
Ghomi Mohammad, Spruck Joel
doaj   +1 more source

CSABA VARGA – In Memoriam [PDF]

open access: yes, 2023
This note is devoted to present the scientific work of Professor Csaba Varga (1959-2021), who had contributions in Calculus of Variations and its applications in the theory of Partial Differential Equations and Finsler Geometry.
KRISTÁLY, Alexandru
core  

Elliptic operators on refined Sobolev scales on vector bundles

open access: yesOpen Mathematics, 2017
We introduce a refined Sobolev scale on a vector bundle over a closed infinitely smooth manifold. This scale consists of inner product Hörmander spaces parametrized with a real number and a function varying slowly at infinity in the sense of Karamata. We
Zinchenko Tetiana
doaj   +1 more source

Existence Results for Solutions to Nonlinear Dirac Systems on Compact Spin Manifolds

open access: yesAdvanced Nonlinear Studies, 2018
In this article, we study the existence of solutions for the Dirac ...
Yang Xu
doaj   +1 more source

Classification of stable solutions for boundary value problems with nonlinear boundary conditions on Riemannian manifolds with nonnegative Ricci curvature

open access: yesAdvances in Nonlinear Analysis, 2018
We present a geometric formula of Poincaré type, which is inspired by a classical work of Sternberg and Zumbrun, and we provide a classification result of stable solutions of linear elliptic problems with nonlinear Robin conditions on Riemannian ...
Dipierro Serena   +2 more
doaj   +1 more source

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