Results 21 to 30 of about 937,763 (287)

On the Solutions of a Fourth Order Difference Equation

Universal Journal of Mathematics and Applications, 2021
In this paper, we solve and study the global behavior of the well defined solutions of the difference equation $$x_{n+1}=\frac{x_{n}x_{n-3}}{Ax_{n-2}+Bx_{n-3}}, \quad n=0,1,...,$$ where $A, B>0$ and the initial values $x_{-i}$, $i\in\{0,1,2,3 ...
R Abo-zeıd
doaj   +1 more source

Algorithms for computing normally hyperbolic invariant manifolds [PDF]

, 1997
An effcient algorithm is developed for the numerical computation of normally hyperbolic invariant manifolds, based on the graph transform and Newton's method.
Vegter, G.,, Broer, H.W., Vegter, G, Osinga, H.M.,, Vegter, G.; id_orcid, Broer, H.W.,, Osinga, HM, Broer, H.W.; id_orcid, Vegter, G., Osinga, H.M., Broer, HW   +10 more
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Wijsman quasi-invariant convergence [PDF]

, 2018
In this study, we defined concepts of Wijsman quasi-invariant convergence, Wijsman quasi-strongly invariant convergence and Wijsman quasi-strongly q-invariant convergence.
Gülle, Esra, Ulusu, Uğur
core   +1 more source

Bootstrap, Markov Chain Monte Carlo, and LP/SDP hierarchy for the lattice Ising model

Journal of High Energy Physics, 2023
Bootstrap is an idea that imposing consistency conditions on a physical system may lead to rigorous and nontrivial statements about its physical observables. In this work, we discuss the bootstrap problem for the invariant measure of the stochastic Ising
Minjae Cho, Xin Sun
doaj   +1 more source

Invariant and Absolute Invariant Means of Double Sequences

Journal of Function Spaces and Applications, 2012
We examine some properties of the invariant mean, define the concepts of strong σ-convergence and absolute σ-convergence for double sequences, and determine the associated sublinear functionals.
Abdullah Alotaibi, M. Mursaleen, M. A. Alghamdi   +2 more
doaj   +1 more source

Some Spaces of Double Sequences Obtained through Invariant Mean and Related Concepts

Abstract and Applied Analysis, 2013
We introduce some double sequences spaces involving the notions of invariant mean (or -mean) and -convergence for double sequences while the idea of -convergence for double sequences was introduced by Çakan et al.
S. A. Mohiuddine, Abdullah Alotaibi
doaj   +1 more source

Invariant convergence types in fuzzy normed spaces [PDF]

, 2023
Bu tez çalışması altı bölümden oluşmaktadır. Birinci bölümde, çalışmada ele alınan yakınsaklık türleri ve üzerinde çalışılan uzayın tarihsel gelişiminden bahsedilmiştir. İkinci bölümde, çalışmaya temel teşkil eden bazı kavramlar verilmiştir.
Yalvaç, Şeyma
core   +1 more source

Ultimate Dynamics of the Two-Phenotype Cancer Model: Attracting Sets and Global Cancer Eradication Conditions

Mathematics, 2023
In this paper we consider the ultimate dynamics of one 4D cancer model which was created for studying the immune response to the two-phenotype tumors. Our approach is based on the localization method of compact invariant sets.
Anatolij N. Kanatnikov, Konstantin E. Starkov   +1 more
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Learning Invariant Object and Spatial View Representations in the Brain Using Slow Unsupervised Learning

Frontiers in Computational Neuroscience, 2021
First, neurophysiological evidence for the learning of invariant representations in the inferior temporal visual cortex is described. This includes object and face representations with invariance for position, size, lighting, view and morphological ...
Edmund T. Rolls, Edmund T. Rolls
doaj   +1 more source

Rotationally invariant texture based features [PDF]

, 2001
Content-based retrieval is ultimately dependent on the features used for the annotation of data and its efficiency is dependent on the invariance and robust properties of these features.
Hill, PR, Canagarajah, CN, Bull, DR
core   +1 more source