Results 71 to 80 of about 42,508 (228)

Unveiling New Perspectives on the Hirota–Maccari System With Multiplicative White Noise

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this study, we delve into the stochastic Hirota–Maccari system, which is subjected to multiplicative noise according to the Itô sense. The stochastic Hirota–Maccari system is significant for its ability to accurately model how stochastic affects nonlinear wave propagation, providing valuable insights into complex systems like fluid dynamics
Mohamed E. M. Alngar   +3 more
wiley   +1 more source

Locally conformal symplectic structures and their generalizations from the point of view of Lie algebroids

open access: yesAnnales Universitatis Paedagogicae Cracoviensis: Studia Mathematica, 2004
We study locally conformal symplectic structures and their generalizations from the point of view of transitive Lie algebroids. To consider l.c.s.
Roman Kadobianski, Jan Kubarski
doaj  

WKB periods for higher order ODE and TBA equations

open access: yesJournal of High Energy Physics, 2021
We study the WKB periods for the (r + 1)-th order ordinary differential equation (ODE) which is obtained by the conformal limit of the linear problem associated with the A r 1 $$ {A}_r^{(1)} $$ affine Toda field equation.
Katsushi Ito   +3 more
doaj   +1 more source

A Critical Review of Pole Clustering Techniques: Common Pitfalls, Extension to MIMO and New Enhanced Variant of the Cuckoo Search Algorithm

open access: yesOptimal Control Applications and Methods, EarlyView.
Enhanced Cuckoo Search for Model Order Reduction ABSTRACT This article presents a critical review of classical and modern pole clustering techniques for model order reduction in high‐order systems. It highlights key limitations and common pitfalls encountered in traditional approaches, especially when extended to Multi‐Input Multi‐Output (MIMO) systems.
Kamel Ben Slimane   +2 more
wiley   +1 more source

Gauge theory on twist-noncommutative spaces

open access: yesJournal of High Energy Physics, 2023
We construct actions for four dimensional noncommutative Yang-Mills theory with star-gauge symmetry, with non-constant noncommutativity, to all orders in the noncommutativity.
Tim Meier, Stijn J. van Tongeren
doaj   +1 more source

Numerical Simulation of Three‐Dimensional Unsteady Extrudate Swell Through Annular Dies: Effects of Die Core Opening Position and Sag on Parison Formation

open access: yesPolymer Engineering &Science, EarlyView.
Study on transient parison formation at various strokes during extrusion of Newtonian and viscoelastic fluids. In the presence of an offset between the mandrel and the bushing, Newtonian fluids exhibit a reduction in extrudate diameter, whereas viscoelastic fluids display diameter swelling only at flow rates exceeding a critical threshold.
Kalonji K. Kabanemi   +2 more
wiley   +1 more source

Relational Bundle Geometric Formulation of Non‐Relativistic Quantum Mechanics

open access: yesFortschritte der Physik, EarlyView.
Abstract A bundle geometric formulation of non‐relativistic many‐particles Quantum Mechanics is presented. A wave function is seen to be a C$\mathbb {C}$‐valued cocyclic tensorial 0‐form on configuration space‐time seen as a principal bundle, while the Schrödinger equation flows from its covariant derivative, with the action functional supplying a ...
J. T. François, L. Ravera
wiley   +1 more source

Averaging over moduli in deformed WZW models

open access: yesJournal of High Energy Physics, 2021
WZW models live on a moduli space parameterized by current-current deformations. The moduli space defines an ensemble of conformal field theories, which generically have N abelian conserved currents and central charge c > N.
Junkai Dong, Thomas Hartman, Yikun Jiang
doaj   +1 more source

On the classification of quantum W-algebras

open access: yes, 1991
In this paper we consider the structure of general quantum W-algebras. We introduce the notions of deformability, positive-definiteness, and reductivity of a W-algebra.
Bowcock, P., Watts, G
core   +2 more sources

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