Results 31 to 40 of about 2,529 (224)

A Marchuk’s Model Analysis by Proposed Decomposition Theorem

open access: yesComputation
Taking the Singularly Perturbed System (SPS) as a model of ODE system separation into fast and slow subsystems by an arbitrarily small parameter, we state and prove a theorem on the decomposition of an Ordinary Differential Equations (ODE) system without
Marina Bershadsky   +2 more
doaj   +1 more source

On the reduction of singularly-perturbed linear differential systems [PDF]

open access: yesProceedings of the 39th International Symposium on Symbolic and Algebraic Computation, 2014
Keywords: Moser-based Reduction, Perturbed linear Differential systems, turning points, Computer ...
Suzy S. Maddah   +2 more
openaire   +2 more sources

Conditions of Functional Null Controllability for Some Types of Singularly Perturbed Nonlinear Systems with Delays

open access: yesAxioms, 2019
Two types of singularly-perturbed nonlinear time delay controlled systems are considered. For these systems, sufficient conditions of the functional null controllability are derived.
Valery Y. Glizer
doaj   +1 more source

Not all Temperature Shocks are Alike: Disentangling Heat and High Temperature Shocks and Their Effects on Inflation in Australia

open access: yesEconomic Record, EarlyView.
We study the effects of heat and high temperature shocks on inflation in Australia using monthly, state‐level temperature anomaly data via two stages. In the first stage, we decompose temperature anomalies into orthogonal components using a structural vector autoregression with long‐run restrictions.
Tan Dat Huynh, Mengheng Li
wiley   +1 more source

Higher-Order Energy Expansions and Spike Locations

open access: yes, 2004
We consider the following singularly perturbed semilinear elliptic problem: (I)\left\{ \begin{array}{l} \epsilon^{2} \Delta u - u + f(u)=0 \ \ \mbox{in} \ \Omega, \\ u>0 \ \ \mbox{in} \ \ \Omega \ \ \mbox{and} \ \frac{\partial u}{\partial \nu}
Winter, M, Wei, J
core   +1 more source

CHD4 Orchestrates Chromatin Remodeling to Activate the c‐Myc Signaling Pathway in Cancer Pathogenesis

open access: yesMedComm – Oncology, Volume 5, Issue 2, June 2026.
CHD4 plays an essential role as an epigenetic regulator in the pathogenesis of multiple myeloma. The chromatin remodeling protein initially resolves G‐quadruplex (G4) secondary structures within the c‐Myc promoter region, thereby enhancing chromatin accessibility and promoting transcriptional activation.
Pinggang Ding   +10 more
wiley   +1 more source

Spikes for the two-dimensional Gierer-Meinhardt system: The weak coupling case

open access: yes, 2001
In this paper, we rigorously prove the existence and stability of multiple-peaked patterns for the singularly perturbed Gierer-Meinhardt system in a two dimensional domain which are far from spatial homogeneity.
Winter, M, Wei, J
core   +1 more source

Vegetated Canopy Heterogeneity Footprints in the Roughness Sublayer

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 10, 28 May 2026.
Abstract Turbulent flows over horizontally homogeneous rough surfaces are categorized as rough‐wall boundary layer flows, while flows over homogeneous vegetated canopies are better described through a mixing‐layer analogy. At present, numerous studies have investigated canopy density as a transition mechanism between rough‐wall and mixing‐layer‐type ...
Giulia Salmaso, Raúl B. Cal, Marc Calaf
wiley   +1 more source

On one scenario for changing the stability of invariant manifolds of singularly perturbed systems

open access: yesВестник Самарского университета: Естественнонаучная серия
The article is devoted to the peculiarities of stability change of slow invariant manifolds of singularly perturbed systems of ordinary differential equations.
Olga S. Kipkaeva
doaj   +1 more source

PID‐Like Robust Control of Non‐Minimum Phase Robotic Manipulators

open access: yesInternational Journal of Robust and Nonlinear Control, Volume 36, Issue 8, Page 4490-4503, 25 May 2026.
ABSTRACT This paper proposes an output‐feedback tracking controller for non‐minimum phase nonlinear systems with unknown uncertainties and external disturbances, where not all states are measurable, and the zero dynamics are unstable. The approach combines a backstepping‐based stabilizing state‐feedback law with a cascade extended high‐gain observer ...
Mohammad Al Saaideh   +2 more
wiley   +1 more source

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