Results 31 to 40 of about 5,372,216 (210)

Rothe Time Discretization and Weak Solutions for a Cutoff Westervelt System

open access: yesNumerical Methods for Partial Differential Equations, Volume 42, Issue 5, September 2026.
ABSTRACTWe study a fully implicit Rothe time discretization for a cutoff first‐order formulation of the Westervelt equation. The key ingredients are the enthalpy variable and the primitive mobility variable, which turn each nonlinear time step into a uniformly monotone elliptic problem and avoid higher‐order energy estimates and inverse inequalities ...
Marvin Fritz
wiley   +1 more source

Discontinuous Galerkin Finite Element Approximation of Nonlinear Second-Order Elliptic and Hyperbolic Systems [PDF]

open access: yes, 2006
We develop the convergence analysis of discontinuous Galerkin finite element approximations to second-order quasilinear elliptic and hyperbolic systems of partial differential equations of the form, respectively, $-\sum_{\alpha=1}^d \partial_{x_\alpha ...
Suli, Endre   +5 more
core   +1 more source

Electron‐Driven Instabilities in Jupiter's Magnetodisc

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Thermal electrons in Jupiter's magnetodisc have been observed to be anisotropic with higher parallel temperature compared to perpendicular. In this work, we used previously‐derived electron properties (Sarkango et al., 2025, https://doi.org/10.1029/2025gl118209) to calculate electron β‖ ${\beta }_{\Vert }$ and compared the observed anisotropy ...
Y. Sarkango   +7 more
wiley   +1 more source

Iterated discrete Hardy-type inequalities with three weights for a class of matrix operators

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
Iterated Hardy-type inequalities are one of the main objects of current research on the theory of Hardy inequalities. These inequalities have become well-known after study boundedness properties of the multidimensional Hardy operator acting from the ...
N.S. Zhangabergenova, A.M. Temirhanova
doaj   +1 more source

The Cost of Convenience: A Hedonic Approach to Travel Time Valuation and Cost‐Benefit Analysis

open access: yesJournal of Regional Science, Volume 66, Issue 4, Page 1140-1165, September 2026.
ABSTRACT This paper presents a novel revealed‐preference approach to estimating the value of travel time (VTT) and calculating consumer surplus for the economic evaluation of transport infrastructure. Departing from traditional stated‐preference models, we derive time valuations by linking residential rental transactions in Greater Sydney to employment
Isaac Mann, David M. Levinson
wiley   +1 more source

Educational Administration: Theory and Practice [PDF]

open access: yes, 2021
Educational Administration: Theory & Practice: Vol 25, Issue
Educational Administration Theory and Practice
core   +1 more source

Saturation Characteristics of Parallel EMIC Waves in the Inner Magnetosphere

open access: yesGeophysical Research Letters, 2019
In this letter, detailed evolution process of parallel electromagnetic ion cyclotron waves in the inner magnetosphere has been investigated through quasilinear theory. A new saturation has been found to occur after the usual first saturation.
Xiongdong Yu, Zhigang Yuan
doaj   +1 more source

Multiplicity of solutions for Dirichlet boundary conditions of second-order quasilinear equations with impulsive effects

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
This paper deals with the multiplicity of solutions for Dirichlet boundary conditions of second-order quasilinear equations with impulsive effects. By using critical point theory, a new result is obtained.
Tengfei Shen, Wenbin Liu
doaj   +1 more source

Shear dynamo problem: Quasilinear kinematic theory [PDF]

open access: yesPhysical Review E, 2009
4 pages; to appear in Physical Review E (Rapid Communication)
Sridhar, S., Subramanian, Kandaswamy
openaire   +3 more sources

L∞$L^\infty$ compactness of solutions of quasilinear problems and applications

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract For a (not necessarily smooth) bounded domain Ω$\Omega$ of RN$\mathbb {R}^N$, N⩾2$N \geqslant 2$ and a Carathéodory vector‐valued function a:Ω×RN→RN$a:\Omega \times \mathbb {R}^N \rightarrow \mathbb {R}^N$, we study the compactness of the inverse of the Leray–Lions operator A(u)=−div(a(x,∇u))$A(u)=-\text{div}(a(x, \nabla u))$, u∈W01,p(Ω)$u\in ...
D. Arcoya   +2 more
wiley   +1 more source

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