Results 51 to 60 of about 2,807 (153)

An existence result for a Robin problem involving $p(x)$-Kirchhoff-type equation with indefinite weight [PDF]

AUT Journal of Mathematics and Computing
This paper discusses the existence of at least two distinct nontrivial weak solutions for a class of $p(x)$-Kirchhoff-type equation plus an indefinite potential under Robin boundary condition.
Mehdi Latifi, Mohsen Alimohammady
doaj   +1 more source

Ekeland variational principle on weighted graphs

Proceedings of the American Mathematical Society, 2019
In this work, we give a graphical version of the Ekeland variational principle which enables us to discover a new version of the Caristi fixed point theorem in weighted digraphs not necessarily generated by a partial order. Then we show that both graphical versions of the Ekeland variational principle and Caristi’s fixed point theorem are equivalent ...
Monther Alfuraidan, Mohamed Khamsi
openaire   +1 more source

Regularization of Linear Ill-posed Problems by the Augmented Lagrangian Method and Variational Inequalities

, 2012
We study the application of the Augmented Lagrangian Method to the solution of linear ill-posed problems. Previously, linear convergence rates with respect to the Bregman distance have been derived under the classical assumption of a standard source ...
Aubin J P, Bachmayr M, Brill M, Burger M, Ekeland I, Grasmair M, Grasmair M, Groetsch C W, Hofmann B, K Frick, Krasnosel’skii M A, Krjanev A V, Lardy L J, M Grasmair, Martinet B, Morozov V A, Powell M J D, Scherzer O   +17 more
core   +1 more source

Parametric Ekeland's variational principle

Applied Mathematics Letters, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Product differentiation in the fruit industry: Lessons from trademarked apples

Agribusiness, Volume 42, Issue 1, Page 148-174, Winter 2026.
Abstract We derive price premiums for patented or trademarked apple varieties, also known as “club apples,” compared to open‐variety apples. We use an expansive retail scanner dataset, along with unique data on apple taste characteristics, to estimate monthly club apple premiums for 2008–2018.
Modhurima Dey Amin, Syed Badruddoza, Jill J. McCluskey, Gregory Astill   +3 more
wiley   +1 more source

Ekeland Variational Principle in the Variable Exponent Sequence Spaces ℓ_p(·)

Mathematics, 2020
In this work , we investigate the modular version of the Ekeland variational principle (EVP) in the context of variable exponent sequence spaces ℓ p ( · ) . The core obstacle in the development of a modular version of the EVP is the failure
Monther R. Alfuraidan, Mohamed A. Khamsi   +1 more
doaj   +1 more source

Normalized solutions of the critical Schrödinger–Bopp–Podolsky system with logarithmic nonlinearity

Transactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.
Abstract In this paper, we study the following critical Schrödinger–Bopp–Podolsky system driven by the p$p$‐Laplace operator and a logarithmic nonlinearity: −Δpu+V(εx)|u|p−2u+κϕu=λ|u|p−2u+ϑ|u|p−2ulog|u|p+|u|p*−2uinR3,−Δϕ+a2Δ2ϕ=4π2u2inR3.$$\begin{equation*} {\begin{cases} -\Delta _p u+\mathcal {V}(\varepsilon x)|u|^{p-2}u+\kappa \phi u=\lambda |u|^{p-2 ...
Sihua Liang, Xueqi Sun, Shuaishuai Liang, Vicenţiu D. Rădulescu   +3 more
wiley   +1 more source

The brezis-ekeland-nayroles minimization principle with mixed finite element method for elastoplastic dynamic problems [PDF]

, 2019
We propose a modification of the Hamiltonian formalism which can be used for dissipative systems, the Brezis-Ekeland-Nayroles principle. The formalism is specialized to the standard plasticity in small strains and dynamics.
Cao, X., de Saxcé, G., Market, B., Nguyen, A. D., Oueslati, A., Stoffel, M.   +5 more
core  

Multiple positive solutions for Schrödinger problems with concave and convex nonlinearities

Electronic Journal of Qualitative Theory of Differential Equations, 2018
In this paper, we consider the multiplicity of positive solutions for a class of Schrödinger equations involving concave-convex nonlinearities in the whole space.
Xiaofei Cao, Junxiang Xu
doaj   +1 more source

Optimal sampled-data control, and generalizations on time scales [PDF]

, 2015
In this paper, we derive a version of the Pontryagin maximum principle for general finite-dimensional nonlinear optimal sampled-data control problems. Our framework is actually much more general, and we treat optimal control problems for which the state ...
Bourdin, Loïc, Trélat, Emmanuel
core   +3 more sources