Results 11 to 20 of about 18,644 (317)
Nonstandard Dynamically Consistent Numerical Methods for MSEIR Model [PDF]
Journal of Applied and Computational Mechanics, 2022 In this paper, two numerical methods for solving the MSEIR model are presented. In constructing these methods, the non-standard finite difference strategy is used.
Ali Shokri +2 more
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On the global attractivity and the periodic character of a recursive sequence [PDF]
Opuscula Mathematica, 2010 In this paper we investigate the global convergence result, boundedness, and periodicity of solutions of the recursive sequence \[x_{n+1} = ax_n + \frac{bx_{n-1}+cx_{n+2}}{dx_{n-1}+ex_{n+2}}, \quad n=0,1,\ldots,\] where the parameters \(a\), \(b\), \(c\),
E. M. Elsayed
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$R$ -Boundedness versus $\gamma$ -boundedness
Arkiv för Matematik, 2016 It is well-known that in Banach spaces with finite cotype, the $R$-bounded and $\gamma$-bounded families of operators coincide. If in addition $X$ is a Banach lattice, then these notions can be expressed as square function estimates. It is also clear that $R$-boundedness implies $\gamma$-boundedness.
Kwapień, Stanislaw +2 more
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On the dynamical behaviors and periodicity of difference equation of order three
Journal of New Results in Science, 2022 The major target of our research paper is to demonstrate the boundedness, stability and periodicity of the solutions of the following third- order difference equation $$ w_{n+1} = \alpha w_{n} +\frac {\beta+ \gamma w_{n_-2} }{\delta+\zeta w_{n-2}} , \;\;
Elsayed Elsayed, Ibraheem Alsulami
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Separating Polynomial $$\chi $$-Boundedness from $$\chi $$-Boundedness
Combinatorica, 2023 AbstractExtending the idea from the recent paper by Carbonero, Hompe, Moore, and Spirkl, for every function $$f:\mathbb {N}\rightarrow \mathbb {N}\cup \{\infty \}$$ f : N → N ∪ {
Briański, Marcin +2 more
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Journal of Graph Theory, 2020 AbstractIf a graph has bounded clique number and sufficiently large chromatic number, what can we say about its induced subgraphs? András Gyárfás made a number of challenging conjectures about this in the early 1980s, which have remained open until recently; but in the last few years there has been substantial progress. This is a survey of where we are
Alex Scott 0001, Paul D. Seymour
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Axioms, 2021 The purpose of this paper is to investigate some qualitative properties of solutions of nonlinear fractional retarded Volterra integro-differential equations (FrRIDEs) with Caputo fractional derivatives.
Osman Tunç +3 more
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Fractal and Fractional, 2022 Recently, the insurance industry in China has been greatly developed. The number of domestic insurance companies and foreign investment insurance companies has greatly increased.
Peiluan Li +4 more
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Adaptive iterative learning control with trajectory shift
Xi'an Gongcheng Daxue xuebao, 2022 In order to solve the problem of trajectory shift in iterative learning control, an adaptive iterative learning control strategy was proposed. For linear time-varying systems with unknown parameters, an adaptive parameter updating algorithm was ...
WANG Shouqin, HE Xingshi, GENG Yan
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Cubo, 2019 In the case of nonlinear problems, whether in differential or difference equations, it is difficult and in some cases impossible to invert the problem and obtain a suitable mapping that can be effectively used in fixed point theory to qualitatively ...
Youssef N. Raffoul
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