Results 21 to 30 of about 68,417 (306)

A note on dissipativity and permanence of delay difference equations

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2018
We give sufficient conditions on the uniform boundedness and permanence of non-autonomous multiple delay difference equations of the form \[x_{k+1}=x_k f_k(x_{k-d},\dots,x_{k-1},x_k),\] where $f_k\colon D \subseteq (0,\infty)^{d+1}\to (0,\infty ...
Ábel Garab
doaj   +1 more source

On global dynamics of 2D convective Cahn–Hilliard equation

open access: yesBoundary Value Problems, 2020
In this paper, we study the long time behavior of solution for the initial-boundary value problem of convective Cahn–Hilliard equation in a 2D case. We show that the equation has a global attractor in H 4 ( Ω ) $H^{4}(\Omega )$ when the initial value ...
Xiaopeng Zhao
doaj   +1 more source

Existence result of the global attractor for a triply nonlinear thermistor problem

open access: yesMoroccan Journal of Pure and Applied Analysis, 2023
We study the existence and uniqueness of a bounded weak solution for a triply nonlinear thermistor problem in Sobolev spaces. Furthermore, we prove the existence of an absorbing set and, consequently, the universal attractor.
Ammi Moulay Rchid Sidi   +3 more
doaj   +1 more source

Innovative technology for insulating the borehole absorbing horizons with thermoplastic materials [PDF]

open access: yesE3S Web of Conferences, 2019
The purpose of the work is to increase the insulation work efficiency by using thermoplastic mixes based on polyethylene terephthalate. The tasks set were solved by a complex method of research, including the analysis and synthesis of the literary and ...
Sudakov Andrii   +3 more
doaj   +1 more source

Absorbing sets and Baker domains for holomorphic maps [PDF]

open access: yesJournal of the London Mathematical Society, 2015
We consider holomorphic maps $f: U \to U$ for a hyperbolic domain $U$ in the complex plane, such that the iterates of $f$ converge to a boundary point $ζ$ of $U$. By a previous result of the authors, for such maps there exist nice absorbing domains $W \subset U$.
Krzysztof Baranski   +3 more
openaire   +6 more sources

Absorbing sets in arc-coloured tournaments

open access: yesDiscrete Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gena Hahn   +2 more
openaire   +2 more sources

2-absorbing ?-semiprimary Ideals of Commutative Rings

open access: yes, 2021
Let R be a commutative ring with nonzero identity, I(R) the set of all idealsof R and δ: I(R) → I(R) an expansion of ideals of R. In this paper, we introduce theconcept of 2-absorbing δ-semiprimary ideals in commutative rings which is an extensionof 2 ...
Yetkin-Çelikel, Ece
core   +1 more source

A Markov – Chain Model for the Tuberculosis in Salah Aldeen City (1991-1999) [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2006
This paper studies a time series for the number of infection of Tuberculosis of the lungs as a Markov – chain. We have made hypotheses concerning the number of infections in order to set the problem according to Markov-chain.
doaj   +1 more source

Asymptotic Absorbing Set Enumerators for Non-Binary Protograph-Based LDPC Code Ensembles

open access: yes, 2020
The finite-length absorbing set enumerators for non-binary protograph based low-density parity-check (LDPC) ensembles are derived. An efficient method for the evaluation of the asymptotic absorbing set distributions is presented and ...
Ben Yacoub, Emna   +3 more
core   +1 more source

Fractional Diffusion to a Cantor Set in 2D

open access: yesFractal and Fractional, 2020
A random walk on a two dimensional square in R2 space with a hidden absorbing fractal set Fμ is considered. This search-like problem is treated in the framework of a diffusion–reaction equation, when an absorbing term is included inside a Fokker–Planck ...
Alexander Iomin, Trifce Sandev
doaj   +1 more source

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