Results 51 to 60 of about 440 (168)

The Venetian Vernacular Lexicon in Eleventh‐ and Twelfth‐Century Latin Documents: Insights from the Codice Diplomatico Veneziano

open access: yesTransactions of the Philological Society, Volume 124, Issue 1, Page 168-199, March 2026.
Abstract This study investigates the lexicographical potential of Medieval Latin documentation from the Venetian area of the Italo‐Romance domain, highlighting the need for a systematic approach to bridge Latin and vernacular linguistic developments. The project MEDITA – Medieval Latin Documentation and Digital Italo‐Romance Lexicography.
Jacopo Gesiot
wiley   +1 more source

Infinitely many solutions for fractional Kirchhoff–Sobolev–Hardy critical problems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2019
We investigate a class of critical stationary Kirchhoff fractional $p$-Laplacian problems in presence of a Hardy potential. By using a suitable version of the symmetric mountain-pass lemma due to Kajikiya, we obtain the existence of a sequence of ...
Vincenzo Ambrosio   +2 more
doaj   +1 more source

Numerical Study of a Nonlocal Nonlinear Schrödinger Equation (MMT Model)

open access: yesStudies in Applied Mathematics, Volume 156, Issue 3, March 2026.
ABSTRACT In this paper, we study a nonlocal nonlinear Schrödinger equation (MMT model). We investigate the effect of the nonlocal operator appearing in the nonlinearity on the long‐term behavior of solutions, and we identify the conditions under which the solutions of the Cauchy problem associated with this equation are bounded globally in time in the ...
Amin Esfahani, Gulcin M. Muslu
wiley   +1 more source

Effects of lime and phosphorus application on soil properties and barley (Hordeum vulgare L.) yields in acidic soils of Sidama region, Ethiopia

open access: yesUrban Agriculture &Regional Food Systems, Volume 11, Issue 1, 2026.
Abstract Soils provide vital services for agricultural productivity, carbon sequestration, biodiversity conservation, and environmental sustainability. However, soil acidity poses a major threat to soil quality and sustainable food production globally, including in Ethiopia.
Elias Dogiso   +3 more
wiley   +1 more source

Existence and multiplicity of solutions for divergence type elliptic equations

open access: yesElectronic Journal of Differential Equations, 2011
We establish the existence and multiplicity of weak solutions of a problem involving a uniformly convex elliptic operator in divergence form. We find one nontrivial solution by the mountain pass lemma, when the nonlinearity has a $(p-1)$-superlinear ...
Lin Zhao, Peihao Zhao, Xiaoxia Xie
doaj  

Existence Theorems for Some Classes of Boundary Value Problems Involving the P(X)-Laplacian

open access: yesNonlinear Analysis, 2008
We prove an alternative for a nonlinear eigenvalue problem involving the p(x)-Laplacian and study a subcritical boundary value problem for the same operator.
Ionica Andrei
doaj   +1 more source

Nontrivial Solutions of a Class of Fourth-Order Elliptic Problems with Potentials

open access: yesFractal and Fractional, 2022
This paper deals with a fourth-order elliptic equation with Dirichlet boundary conditions. Using a variant form of the mountain pass theorem, we prove the existence of nontrivial solutions to this problem.
Jiabin Zuo   +2 more
doaj   +1 more source

Stability Results for Higher Order Solutions of Damped Wave Equations With Generalized Hartree‐Type Nonlinearity in Rn

open access: yesJournal of Applied Mathematics, Volume 2026, Issue 1, 2026.
In this paper, we investigate the dynamics of higher‐order solutions for a class of damped wave equations posed in Rn and driven by a nonlocal cubic convolution source of Hartree type. The model incorporates a higher order Laplacian of order σ, spatially dependent density functions, and frictional damping mechanisms.
Khaled Zennir   +4 more
wiley   +1 more source

A Mountain Pass to the Jacobian Conjecture

open access: yes, 1998
This paper presents an approach to injectivity theorems via the Mountain Pass Lemma and raises an open question. The main result of this paper (Theorem 1.1) is proved by means of the Mountain Pass Lemma and states that if the eigenvalues of are ...
Marc Chamberland, Gary Meisters
core   +1 more source

Existence of two positive solutions for Kirchhoff type equations with critical exponents in whole space

open access: yes四川大学学报. 自然科学版, 2018
Under the suitable ranges of parameters and given assumptions, by using Ekeland variations principle、mountain pass lemma、concentration compactness lemma and some analysis techniques, Kirchhoff-type equations with critical exponents and nonhomogeneous ...
Ding Ling, WANG Ji-Xiu, ZHANG Dan-Dan
doaj  

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