Results 1 to 10 of about 2,797,632 (233)

On the comparison principle in the calculus of variations [PDF]

open access: bronzeArkiv för Matematik, 1983
On etudie des integrales variationnelles de la forme I(u,D)=∫ D F(x,⊇u(x))dx,DCG.
Peter Lindqvist
openalex   +4 more sources

On a comparison principle for Trudinger’s equation [PDF]

open access: yesAdvances in Calculus of Variations, 2020
Abstract We study the comparison principle for non-negative solutions of the equation
Lindgren, Erik, Lindqvist, Peter
openaire   +4 more sources

A Comparison Result for the Nabla Fractional Difference Operator

open access: yesFoundations, 2023
This article establishes a comparison principle for the nabla fractional difference operator ∇ρ(a)ν ...
Jagan Mohan Jonnalagadda
doaj   +1 more source

On the Dynamics of New 4D and 6D Hyperchaotic Systems

open access: yesMathematics, 2022
One of the most interesting problems is the investigation of the boundaries of chaotic or hyperchaotic systems. In addition to estimating the Lyapunov and Hausdorff dimensions, it can be applied in chaos control and chaos synchronization.
Samia Rezzag, Fuchen Zhang
doaj   +1 more source

Large solutions of a class of degenerate equations associated with infinity Laplacian

open access: yesAdvanced Nonlinear Studies, 2022
In this article, we investigate the boundary blow-up problem Δ∞hu=f(x,u),inΩ,u=∞,on∂Ω,\left\{\begin{array}{ll}{\Delta }_{\infty }^{h}u=f\left(x,u),& {\rm{in}}\hspace{0.33em}\Omega ,\\ u=\infty ,& {\rm{on}}\hspace{0.33em}\partial \Omega ,\end{array}\right.
Li Cuicui, Liu Fang
doaj   +1 more source

Comparison principles and applications to mathematical modelling of vegetal meta-communities

open access: yesMathematics in Engineering, 2022
This article partakes of the PEGASE project the goal of which is a better understanding of the mechanisms explaining the behaviour of species living in a network of forest patches linked by ecological corridors (hedges for instance).
Gauthier Delvoye   +2 more
doaj   +1 more source

A comparison principle for large deviations [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
If { μ n } \{ {\mu _n}\} and { ν n } \left \{ {{\nu _n}} \right \} are two sequences of probability measures on a separable metric space, we give ...
Baxter, John R., Jain, Naresh C.
openaire   +2 more sources

A new fixed-time stability criterion for fractional-order systems

open access: yesAIMS Mathematics, 2022
In this work, we study the fixed-time stability of fractional-order systems. By virtue of the properties of Riemann-Liouville fractional derivative and the comparison principle, we derive a new fixed-time stability theorem for fractional-order systems ...
Yucai Ding, Hui Liu
doaj   +1 more source

A COMPARISON OF VARIOUS ANALYTIC CHOICE PRINCIPLES [PDF]

open access: yesThe Journal of Symbolic Logic, 2021
AbstractWe investigate computability theoretic and descriptive set theoretic contents of various kinds of analytic choice principles by performing a detailed analysis of the Medvedev lattice of $\Sigma ^1_1$ -closed sets. Among others, we solve an open problem on the Weihrauch degree of the parallelization of the $\Sigma ^1_1$ -choice principle on ...
Anglès D'Auriac, Paul-Elliot   +1 more
openaire   +2 more sources

Propagation dynamics in an SIRS model with general incidence functions

open access: yesMathematical Biosciences and Engineering, 2023
This paper studies the initial value problems and traveling wave solutions in an SIRS model with general incidence functions. Linearizing the infected equation at the disease free steady state, we can define a threshold if the corresponding basic ...
Wenhao Chen , Guo Lin, Shuxia Pan
doaj   +1 more source

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