Results 61 to 70 of about 781 (177)

A revision of the genus Armeria (Plumbaginaceae) in peninsular Italy and Sicily through an integrative taxonomic approach

TAXON, Volume 75, Issue 4, August 2026.
Abstract The genus Armeria in peninsular Italy has been affected by taxonomic ambiguity for more than a century due to high morphological variability. We present a comprehensive revision of peninsular Italian and Sicilian Armeria species, using an integrated taxonomic approach that combines molecular phylogeny, plant and seed morphometrics, and ...
Manuel Tiburtini, Gianluigi Bacchetta, Fabrizio Bartolucci, Liliana Bernardo, Fabio Conti, Emanuela Di Iorio, Gianniantonio Domina, Duilio Iamonico, Mauro Iberite, Luca Paino, Marco Sarigu, Paolo Caputo, Lorenzo Peruzzi   +12 more
wiley   +1 more source

Multiple Solutions for Nonhomogeneous Neumann Differential Inclusion Problems by the p(x)-Laplacian

The Scientific World Journal, 2013
A class of nonlinear Neumann problems driven by p(x)-Laplacian with a nonsmooth locally Lipschitz potential (hemivariational inequality) was considered. The approach used in this paper is the variational method for locally Lipschitz functions.
Qing-Mei Zhou
doaj   +1 more source

Vertical Correlation Lengths as a Tool for Quantifying Profiling Capabilities in the Planetary Boundary Layer and Troposphere and Defining Future Requirements

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract The planetary boundary layer (PBL) is the portion of the troposphere that is directly influenced by the presence of the Earth's surface. The thermodynamic structure of this layer exhibits a wide variety of characteristics across the globe. In 2018 the National Academies of Sciences, Engineering, and Medicine Space Studies Board recommended ...
M. L. Loveless, R. O. Knuteson, D. M. Loveless, T. Wagner   +3 more
wiley   +1 more source

Existence and Multiplicity Results of Homoclinic Solutions for the DNLS Equations with Unbounded Potentials

Abstract and Applied Analysis, 2012
A class of difference equations which include discrete nonlinear Schrödinger equations as special cases are considered. New sufficient conditions of the existence and multiplicity results of homoclinic solutions for the difference equations are obtained ...
Defang Ma, Zhan Zhou
doaj   +1 more source

The structure of the critical set in the mountain-pass theorem for nondifferentiable functions

Differential and Integral Equations, 2003
The paper studies the structure of the critical set at the level given by the minimax value in the mountain pass theorem for nonsmooth functionals expressed as a sum of a locally Lipschitz function and a proper, convex, lower semicontinuous function on a Banach space.
BARLETTA G, MARANO, Salvatore Angelo
openaire   +4 more sources

From Resistivity to Hydraulic Properties: Calibrating a Groundwater Flow Model by Integrating Airborne Electromagnetic and Borehole Data Into a Probabilistic Multi‐Texture Framework

Water Resources Research, Volume 62, Issue 8, August 2026.
Abstract Airborne electromagnetic (AEM) surveys offer rapid, cost‐effective subsurface imaging, yet converting their electrical resistivity (ER) models into physically meaningful hydraulic property fields for groundwater models remains a challenge. We develop and demonstrate a data‐driven workflow for an unconsolidated sedimentary aquifer system in ...
Leland Scantlebury, Thomas Harter
wiley   +1 more source

A mountain pass theorem for minimal hypersurfaces with fixed boundary [PDF]

Calculus of Variations and Partial Differential Equations, 2020
In this work, we prove the existence of a third embedded minimal hypersurface spanning a closed submanifold $γ$ contained in the boundary of a compact Riemannian manifold with convex boundary, when it is known a priori the existence of two strictly stable minimal hypersurfaces that bound $γ$.
openaire   +2 more sources

The Internal Ice Content of Timpanogos Rock Glacier, Utah, USA From 3‐D Bayesian Inversion of Gravity Data

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 8, August 2026.
Abstract Despite the prevalence of rock glaciers in mountain environments, their ice volumes are poorly constrained. Rock glaciers persist in settings unable to support glaciers. They act as climate resilient water stores and refugia for cold‐adapted species while also posing a hazard to alpine communities. Imaging the entire internal structure of rock
Bronson Cvijanovich, Michael S. Thorne, Surya Pachhai, Leif S. Anderson, Ivan Tochimani‐Hernandez, Christian L. Hardwick, Tonie van Dam   +6 more
wiley   +1 more source

Three nontrivial solutions for nonlinear fractional Laplacian equations

Advances in Nonlinear Analysis, 2018
We study a Dirichlet-type boundary value problem for a pseudodifferential equation driven by the fractional Laplacian, proving the existence of three non-zero solutions.
Düzgün Fatma Gamze, Iannizzotto Antonio   +1 more
doaj   +1 more source

Le « Mountain Pass Theorem »

, 2022
The "sente" (Latin semita, from se- (“apart”) and from the radical *mi, from meo (“to go”) has more to do with the weft, the crossroads, than with feeling or sensations. What will interest me here will therefore not be some umpteenth philosophical variation on the "sente" or the path, but a theorem of pure mathematics - the "Mountain Pass Theorem" (or ...
openaire   +1 more source