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A Note on the First Integrals of Vector Fields with Integrating Factors and Normalizers [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
We prove a sufficient condition for the existence of explicit first integrals for vector fields which admit an integrating factor. This theorem recovers and extends previous results in the literature on the integrability of vector fields which are volume
Jaume Llibre, Daniel Peralta-Salas
doaj   +6 more sources

A Survey on the Inverse Integrating Factor [PDF]

open access: yesQualitative Theory of Dynamical Systems, 2010
The relation between limit cycles of planar differential systems and the inverse integrating factor was first shown in an article of Giacomini, Llibre and Viano appeared in 1996. From that moment on, many research articles are devoted to the study of the properties of the inverse integrating factor and its relation with limit cycles and their ...
Maite Grau, Isaac A García
exaly   +5 more sources

Krylov SSP Integrating Factor Runge–Kutta WENO Methods

open access: yesMathematics, 2021
Weighted essentially non-oscillatory (WENO) methods are especially efficient for numerically solving nonlinear hyperbolic equations. In order to achieve strong stability and large time-steps, strong stability preserving (SSP) integrating factor (IF ...
Shanqin Chen
doaj   +1 more source

Integration of Differential Equations by C-Structures

open access: yesMathematics, 2023
Several integrability problems of differential equations are addressed using the concept of a C∞-structure, a recent generalization of the notion of solvable structure.
Antonio Jesús Pan-Collantes   +2 more
doaj   +1 more source

Symmetries and Integrating Factors [PDF]

open access: yesJournal of Nonlinear Mathematical Physics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leach, P. G. L., Bouquet, S. É.
openaire   +2 more sources

Explicit Integrating Factor Runge–Kutta Method for the Extended Fisher–Kolmogorov Equation

open access: yesMathematical and Computational Applications, 2023
The extended Fisher–Kolmogorov (EFK) equation is an important model for phase transitions and bistable phenomena. This paper presents some fast explicit numerical schemes based on the integrating factor Runge–Kutta method and the Fourier spectral method ...
Yanan Wang, Shuying Zhai
doaj   +1 more source

Solução das equações da cinética pontual de nêutrons via Método de Fator de Integração Implícito com fonte externa

open access: yesBrazilian Journal of Radiation Sciences, 2020
Os autores apresentam uma abordagem semi-analítica para obter soluções para as equações da cinética pontual de nêutrons. A reatividade dependente do tempo é aproximada por aproximação constante por partes em tempo discretizado, e o sistema de equações ...
Jaime Conte Zandoná   +4 more
doaj   +1 more source

MEMORABLE TOURISM EXPERIENCES (MTE): INTEGRATING ANTECEDENTS, CONSEQUENCES AND MODERATING FACTOR

open access: yesTourism and Hospitality Management, 2022
Purpose - The concept of tourism as an experience is gaining interest among practitioners and academics alike. This study contributes to the tourism literature by integrating the antecedents and outcomes of memorable tourism experiences (MTE) and ...
Jyoti Sharma   +2 more
doaj   +1 more source

The Integrating Factor Method in Banach Spaces [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
The so called integrating factor method, used to find solutions of ordinary differential equations of a certain type, is well known. In this article, we extend it to equations with values in a Banach space.
Josefina Alvarez   +2 more
doaj   +1 more source

Integrating Green Infrastructure into Urban Planning: Developing Melbourne’s Green Factor Tool

open access: yesUrban Planning, 2021
As cities increase in size and density, the ecosystem services supplied by urban greenery and green infrastructure are increasingly vital for sustainable, liveable urban areas.
Judy Bush   +3 more
doaj   +1 more source

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