Results 1 to 10 of about 2,839,272 (285)

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

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

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

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

Improvements on overdetermined problems associated to the p-Laplacian

open access: yesMathematics in Engineering, 2022
This work presents some improvements on related papers that investigate certain overdetermined problems associated to elliptic quasilinear operators. Our model operator is the p-Laplacian.
Antonio Greco , Francesco Pisanu
doaj   +1 more source

On strong comparison principle for semicontinuous viscosity solutions of some nonlinear elliptic equations [PDF]

open access: yes, 2005
The strong comparison principle for semicontinuous viscosity solutions of some nonlinear elliptic equations are considered. For linear elliptic equations it is well known that the strong comparison principle is equivalent to the strong maximum ...
Giga, Yoshikazu, Ohnuma, Masaki
core   +1 more source

Backward Stochastic Differential Equations Driven by a Jump Markov Process with Continuous and Non-Necessary Continuous Generators

open access: yesFractal and Fractional, 2022
We deal with backward stochastic differential equations driven by a pure jump Markov process and an independent Brownian motion (BSDEJs for short). We start by proving the existence and uniqueness of the solutions for this type of equation and present a ...
Khaoula Abdelhadi   +3 more
doaj   +1 more source

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