Results 21 to 30 of about 86 (69)

Comparison results for semilinear elliptic equations via Picone-type identities

open access: yesElectronic Journal of Differential Equations, 2009
By means of a Picone's type identity, we prove uniqueness and oscillation of solutions to an elliptic semilinear equation with Dirichlet boundary conditions.
Tadie
doaj  

Latitudinal Discrepancy Between Thermospheric Density and Temperature Associated With Neutral Composition Effect

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract In this study, multi‐source thermospheric observations and TIEGCM simulations were used to explore the latitudinal variations of thermospheric temperature and total mass density at equinoxes. At nighttime, temperature and density exhibit consistent latitudinal patterns, with higher values at high latitudes.
Zhongli Li   +3 more
wiley   +1 more source

Generalized Picone identity for Finsler -Laplacian and its applications

open access: yesUkrains’kyi Matematychnyi Zhurnal, 2021
UDC 517.9 We prove a generalized Picone-type identity for Finsler -Laplacian and use it to establish some qualitative results for some boundary-value problems involving Finsler -Laplacian.  
openaire   +1 more source

Introduction to TREx‐ATM V2.0: A Versatile Model of Auroral Transport and Its Effects in the Ionosphere

open access: yesEarth and Space Science, Volume 13, Issue 7, July 2026.
Abstract Auroral transport models (ATMs) play an important role in quantitative studies of optical auroras, their driving mechanisms, and their effects on the ionosphere and thermosphere. TREx‐ATM was initially developed as the support model for the Transition Region Explorer (TREx) mission, and has gained increasing applications in the community in ...
Jun Liang   +5 more
wiley   +1 more source

How the 29 July 2025 M8.8 Kamchatka Earthquake Shook the Ionosphere Over Japan

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract This study investigates the mid‐field (∼1,100–3,800 km) ionospheric response to the 29 July 2025 Kamchatka earthquake over Japan using multi‐instrument observations, raytracing, and numerical simulations. Total electron content (TEC) observations from GPS satellite G04 and Galileo satellite E10 show a maximum TEC perturbation of ∼0.5–0.85 TECU
R. K. Barad   +5 more
wiley   +1 more source

Picones's identity and the moving plane procedure

open access: yesElectronic Journal of Differential Equations, 1995
partial differential equations are shown to be symmetric by means of the moving plane argument coupled with Spectral Theory results and Picone's Identity.
W. Allegretto, D. Siegel
doaj  

High Latitude Thermosphere and Ionosphere Density Response to the May 2024 Geomagnetic Storm Observed by the LLITED CubeSat Mission

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 7, July 2026.
Abstract The May 2024 G5 geomagnetic storm produced significant disturbances in the ionosphere and thermosphere, particularly at high latitudes. Using high‐resolution in situ ion and neutral density measurements from the NASA Low‐Latitude Ionosphere/Thermosphere Enhancements in Density (LLITED) CubeSat at 430 km altitude, this study documents notable ...
Diana J. Swanson   +6 more
wiley   +1 more source

New‐Onset Vitiligo During Dupilumab Treatment: A Clinical Observation and Literature Review

open access: yesThe Clinical Respiratory Journal, Volume 20, Issue 7, July 2026.
Dupilumab rarely induces new‐onset vitiligo, even after discontinuation of the drug, potentially through the activation of the Th1/IFN‐γ pathway following IL‐4R blockade. Female sex and the use of topical corticosteroids are associated with improved outcomes, whereas discontinuing dupilumab alone does not ensure repigmentation.
Xuhui Pu, Suzhen Ju, Yanfang Yu
wiley   +1 more source

Sturmian comparison results for quasilinear elliptic equations in $R^n$

open access: yesElectronic Journal of Differential Equations, 2007
We obtain Sturmian comparison results for the nonnegative solutions to Dirichlet problems associated with $p$-Laplacian operators. From Picone-type identities [4,9], we obtain results comparing solutions of two types of equations.
Tadie
doaj   +2 more sources

Picone's identity and the moving plane procedure

open access: yesElectronic Journal of Differential Equations, 1995
Summary: Positive solutions of a class of nonlinear elliptic partial differential equations are shown to be symmetric by means of the moving plane argument coupled with spectral theory results and Picone's identity. The method adapts easily to situations where the moving plane procedure gives rise to variational problems with positive eigenfunctions.
W. Allegretto, D. Siegel
openaire   +2 more sources

Home - About - Disclaimer - Privacy