Results 21 to 30 of about 42,681 (243)
Pakistan Journal of Engineering Technology & Science, 2023 . In research and technology, discretization is essential for describing and numerically assessing mathematical models. To provide promising numerical formulations with computationally efficient, mathematical models, which are frequently constructed ...
Inayatullah Soomro +4 more
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Abstract and Applied Analysis, 2012 We explore the dynamics of a class of mutualism-competition-predator interaction models with Beddington-DeAngelis functional responses and impulsive perturbations. Sufficient conditions for existence of positive periodic solution are established by using
Xiaoming Fan, Zhigang Wang, Fuquan Jiang
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Control of a Time Delay System Arising From Linearized Conservation Laws
IEEE Access, 2019 A structure of energy cogeneration with distributed parameters is considered, modeled by an initial boundary value problem for hyperbolic conservation laws with a nonlinear and nonstandard boundary condition.
Daniela Danciu +2 more
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Modern Stochastics: Theory and ApplicationsDespite the fact that the theory of stability of continuous-time difference equations has a long history, is well developed and very popular in research, there is a simple and clearly formulated problem about the stability of stochastic difference ...
Leonid Shaikhet
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Моделирование и анализ информационных систем, 2015 We consider a differential-difference equation of second order of delay type, containing the delay of the function and its derivatives. Such equations occur in the modeling of electronic devices.
E. P. Kubyshkin, A. R. Moryakova
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MathematicsThis article examines the stability properties of linear stochastic difference equations with delays. For this purpose, a novel approach is used that combines the theory of inverse-positive matrices and the asymptotic methods developed by N.V.
Arcady Ponosov, Ramazan I. Kadiev
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Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi +9 more
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Stability Analysis of the Bat Algorithm Described as a Stochastic Discrete-Time State-Space System
Complexity, 2018 The main problem with the soft-computing algorithms is a determination of their parameters. The tuning rules are very general and need experiments during a trial and error method.
Janusz Piotr Paplinski
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Ain Shams Engineering Journal, 2017 This paper deals with singularly perturbed boundary value problem for a linear second order delay differential equation. It is known that the classical numerical methods are not satisfactory when applied to solve singularly perturbed problems in delay ...
P. Pramod Chakravarthy +2 more
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Boundedness and stability in nonlinear delay difference equations employing fixed point theory
Electronic Journal of Qualitative Theory of Differential Equations, 2005 This paper is devoted to derive some results on the qualitative properties of linear and nonlinear difference equations such as stability, asymptotic stability and equi-boundedness, by using the contraction mapping principle. First, the authors study a linear difference equation \[ x(t+1)=a(t)x(t)+b(t)x(t-g(t))+c(t)\Delta x(t-g(t)), \] where \(a,b,c ...
Islam, Muhammad, Yankson, Ernest
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