Results 11 to 20 of about 86 (69)

Some Spectral Properties of p-Laplacian Diffusion Boundary Value Problem on Time Scales

open access: yesITM Web of Conferences, 2018
In this paper, we consider p-Laplacian type Diffusion boundary value problem on an arbitrary time scale. We generalize some spectral properties of p-Laplacian Diffusion problem to an arbitrary time scale.
Gulsen Tuba   +2 more
doaj   +1 more source

Elbert-type comparison theorems for a class of nonlinear Hamiltonian systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
Picone-type identities are established for a pair of solutions $(x,y)$ and $(X,Y)$ of the respective systems of the form \begin{equation} x' = r(t)x + p(t)\varphi_{1/\alpha} (y), \qquad y' = - q(t)\varphi_\alpha (x) - r(t)y, \tag{1.1} \end{equation ...
Jaroslav Jaroš, Takaŝi Kusano
doaj   +1 more source

The Picone identity for a class of partial differential equations [PDF]

open access: yesMathematica Bohemica, 2002
Summary: The Picone-type identity for the half-linear second order partial differential equation \[ \sum _{i=1}^n\frac {\partial }{\partial x_i} \Phi \bigg (\frac {\partial u}{\partial x_i}\bigg )+c(x)\Phi (u)=0,\quad \Phi (u):=| u| ^{p-2}u,\;p>1, \] is established and some applications of this identity are suggested.
openaire   +1 more source

The Picone identity: A device to get optimal uniqueness results and global dynamics in Population Dynamics [PDF]

open access: yesNonlinear Analysis: Real World Applications, 2021
This paper infers from a generalized Picone identity the uniqueness of the stable positive solution for a class of semilinear equations of superlinear indefinite type, as well as the uniqueness and global attractivity of the coexistence state in two generalized diffusive prototypes of the symbiotic and competing species models of Lotka-Volterra.
Sergio Fernández-Rincón   +1 more
openaire   +2 more sources

P-Laplacian Dirac system on time scales

open access: yesJournal of Taibah University for Science, 2019
The  $ {p} $ -Laplacian type Dirac systems are nonlinear generalizations of the classical Dirac systems. They can be observed as a bridge between nonlinear systems and linear systems.
Tuba Gulsen, Emrah Yilmaz, Meltem Kayali
doaj   +1 more source

The illusion of competence: Managers and the Dunning–Kruger effect

open access: yesEuropean Management Review, EarlyView.
Abstract Do managers properly recognize their own expertise? This study explores distortions in self‐perception by investigating the presence of the Dunning–Kruger effect, a cognitive bias that distorts self‐assessment, within managerial contexts. Although widely studied in psychology, its implications for management remain underexplored.
Francesca Sanguineti   +3 more
wiley   +1 more source

Cross‐Prudence and Optimal Prevention

open access: yesInternational Economic Review, EarlyView.
ABSTRACT In this paper, we study optimal prevention in the presence of a correlated nonfinancial background risk. Under positive correlation, cross‐prudence in the nonfinancial attribute reduces optimal prevention. We establish this result in the most direct extension of the standard prevention problem with binary marginal distributions and show that ...
Jingyuan Li, Richard Peter, Lin Zhou
wiley   +1 more source

Beyond Tobacco Prevention: The Effects of Tobacco 21 Laws on Young Adults' Body Weight

open access: yesHealth Economics, Volume 35, Issue 9, Page 1406-1423, September 2026.
ABSTRACT Tobacco 21 (T21) laws effectively reduce youth tobacco use by preventing initiation. This study examines their impact on body weight among young adults aged 18–20. Using 2009–2019 Behavioral Risk Factor Surveillance System data and a two‐way fixed‐effects difference‐in‐differences (DID) design, we find limited evidence of broad weight changes ...
Qihua Qiu, Jaesang Sung
wiley   +1 more source

Migrating and Nonmigrating Neutral Mass Density Tides From GRACE‐FO Observations for Solar Minimum Conditions

open access: yesEarth and Space Science, Volume 13, Issue 8, August 2026.
Abstract This study presents the migrating and nonmigrating thermospheric neutral mass density tides from the Gravity Recovery And Climate Experiment Follow‐On (GRACE‐FO) observations under solar minimum conditions (year 2020). The observed densities are first mapped to a reference altitude of 500 km using an empirical model (NRLMSIS 2.0) to remove the
Mukta Neogi, Jens Oberheide
wiley   +1 more source

Controlling of the F Region Plasma Structures by the E Region Conductance in the Auroral Ionosphere

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract At high latitudes, the E and F regions of the ionosphere are strongly coupled through nearly vertical magnetic field lines. To simultaneously and directly relate the E and F regions' plasma structures, we ran a coordinated conjunction campaign between Swarm satellites and Incoherent Scatter Radar in Tromsø, Norway, during a moderate ...
Yaqi Jin   +12 more
wiley   +1 more source

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