Results 21 to 30 of about 18,644 (317)

On a system of $m$ difference equations having exponential terms

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2015
In this paper we study the asymptotic behavior of the positive solutions of a cyclic system of the following $m$ difference equations: \begin{align*} x^{(i)}_{n+1}&=a_ix_n^{(i+1)}+b_i x^{(i)}_{n-1}e^{{-x^{(i+1)}_n}},\qquad i=1,2,\ldots, m-1,\\ x^{(m)}_ ...
Garyfalos Papaschinopoulos   +2 more
doaj   +1 more source

Dynamical Analysis of Discrete-Time Two-Predators One-Prey Lotka–Volterra Model

open access: yesMathematics, 2022
This research manifesto has a comprehensive discussion of the global dynamics of an achievable discrete-time two predators and one prey Lotka–Volterra model in three dimensions, i.e., in the space R3.
Abdul Khaliq   +4 more
doaj   +1 more source

Design and Verification of Petri-Net-Based Cyber-Physical Systems Oriented toward Implementation in Field-Programmable Gate Arrays—A Case Study Example

open access: yesEnergies, 2022
This paper presents a novel design approach of a Petri-net-based cyber-physical system (CPS). The idea is oriented toward implementation in a field-programmable gate array (FPGA).
Remigiusz Wiśniewski   +2 more
doaj   +1 more source

Stability and boundedness of solutions of the initial value problem for a class of time-fractional diffusion equations

open access: yesAdvances in Difference Equations, 2017
The aim of this paper is to study the stability and boundedness of solutions of the initial value problem for a class of time-fractional diffusion equations.
Yanhua Wen, Xian-Feng Zhou, Jun Wang
doaj   +1 more source

Criteria for the boundedness of a certain class of matrix operators from lpv into lqu

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
One of the main aims in the theory of matrices is to find necessary and sufficient conditions for the elements of any matrix so that the corresponding matrix operator maps continuously from one normed space into another one.
A.M. Temirkhanova, A.T. Beszhanova
doaj   +1 more source

Boundedness in a Biofilm-Chemotaxis Model in Evolving Porous Media

open access: yesMathematical Modelling and Analysis, 2017
The article concerns with a model discribing the growth of a biofilm made by chemotactical bacteria within a saturated porous media and affects the flow through the pores. The underlying model describing this process on the macroscale is derived in [21].
Raphael Schulz
doaj   +1 more source

ON SPECTRAL BOUNDEDNESS [PDF]

open access: yesJournal of the Korean Mathematical Society, 2003
Motivated by a result of \textit{R. E. Curto} and \textit{M. Mathieu} [Proc. Am. Math. Soc. 123, 2431--2434 (1995; Zbl 0822.47034)], the author investigates spectrally bounded and spectrally infinitesimal generalized inner derivations.
openaire   +2 more sources

A NOTE ON A TWO-PARAMETER FAMILY OF OPERATORS ${\MATHCAL A}^{B,C}$ ON WEIGHTED BERGMAN SPACES

open access: yesПроблемы анализа, 2019
In this article, we prove that the two-parameter family of operators Ab,c is bounded on the weighted Bergman spaces B p α+c−1 if α + 2 < p and unbounded if α + 2 = p.
S. Naik, P. K. Nath
doaj   +1 more source

Integral type operators from normal weighted Bloch spaces to QT,S spaces

open access: yesJournal of Hebei University of Science and Technology, 2016
Operator theory is an important research content of the analytic function space theory. The discussion of simultaneous operator and function space is an effective way to study operator and function space.
Yongyi GU, Wenjun YUAN, Fanning MENG
doaj   +1 more source

Persistence and Stability of a Food Chain Model with Mixed Selection of Functional Responses

open access: yesNonlinear Analysis, 2006
One approach to the study of an ecological community begins with an important object: its food web. Theoretical studies of food web must contend with the question of how to couple the large number of interacting species. One line of investigation assumes
A. Maiti, B. Patra, G. P. Samanta
doaj   +1 more source

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