Results 51 to 60 of about 2,643 (218)

Quasilinear Theory Approximations

open access: yesمجلة العلوم والدراسات الإنسانية - كلية الآداب والعلوم – المرج
If the instability increases exponentially without any limitation, evidently, this does not reflect the reality and it is therefore necessary to identify a mechanism responsible for the saturation of this instability. The aim of this work is to add such a capability, the first step is to let  vary slowly (compared to the wave period) over time.
A S.Alhasi, A S.Elmabrok
openaire   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

open access: yesInternational Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam   +2 more
wiley   +1 more source

Strongly quasilinear parabolic systems

open access: yes, 2023
Using the theory of Young measures, we prove the existence of solutions to a strongly quasilinear parabolic system Mathematics Subject Classification (2010): 35K55, 35D30, 46E30 Received 29 April 2020; Accepted 29 June ...
AZROUL, Elhoussine   +3 more
core   +1 more source

Conservation Laws, Hodograph Transformation and Boundary Value Problems of Plane Plasticity

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
For the hyperbolic system of quasilinear first-order partial differential equations, linearizable by hodograph transformation, the conservation laws are used to solve the Cauchy problem.
Sergey I. Senashov, Alexander Yakhno
doaj   +1 more source

Analysis of Chorus Wave Power on Burst‐Mode Timescales During the Van Allen Probes Era

open access: yesJournal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract Interactions between whistler‐mode chorus waves and electrons are a key driver of dynamics in Earth's radiation belts. These global dynamics are often described using Fokker‐Planck diffusion models. Whilst, in many cases, such models effectively describe the large scale changes within the region, they often rely upon spatially and temporally ...
R. Black   +4 more
wiley   +1 more source

Strong well‐posedness for a stochastic fluid‐rigid body system via stochastic maximal regularity

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 5, May 2026.
Abstract We develop a rigorous analytical framework for a coupled stochastic fluid‐rigid body system in R3$\mathbb {R}^3$. The model describes the motion of a rigid ball immersed in an incompressible Newtonian fluid subjected to both additive noise in the fluid and body equations and transport‐type noise in the fluid equation. We establish local strong
Felix Brandt, Arnab Roy
wiley   +1 more source

Multiplicity results for a quasilinear elliptic system via Morse theory

open access: yes, 2005
In this work we prove some multiplicity results for solutions of a system of elliptic quasilinear equations, involving the p-Laplace operator (p > 2). The proofs are based on variational and topological arguments and make use of new perturbation results ...
Lazzo, M., Vannella, G., Cingolani, S.
core   +2 more sources

Controllability of nonlocal impulsive stochastic quasilinear integrodifferential systems

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
Sufficient conditions for controllability of nonlocal impulsive stochastic quasilinear integrodifferential systems in Hilbert spaces are established. The results are obtained by using evolution operator, semigroup theory and fixed point technique.
R. Sathya, K. Balachandran
doaj   +1 more source

Satisficing, aggregation, and quasilinear utility

open access: yesQuantitative Economics, Volume 17, Issue 2, Page 431-460, May 2026.
This paper studies approximation error in the quasilinear utility model. Error arises because individuals do not perfectly optimize, and instead satisfice. We investigate the consequences of individual satisficing for modeling aggregate demand, providing an approximate aggregation theorem.
Roy Allen, John Rehbeck
wiley   +1 more source

On the Validity of Quasilinear Plasma Transport Equations

open access: yesThe Astrophysical Journal
Significant differences regarding their validity and applicability are found for the two variants of the quasilinear transport theory (QLT) for charged particles in partially turbulent electromagnetic fields.
Reinhard Schlickeiser, Martin Kröger
doaj   +1 more source

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