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Limit periodic perturbations of difference systems with coefficients from commutative groups

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; 29 (1)

We study perturbations of homogeneous linear difference systems over infinite fields with absolute values. The coefficient matrices of the treated sys......

Indeterminate moment problem associated with continuous dual q-Hahn polynomials

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; 29 (2)

We study a limiting case of the Askey-Wilson polynomials when one of the parameters goes to infinity, namely continuous dual q-Hahn polynomials when q......

Chaos in popular metaheuristic optimizers - a bibliographic analysis

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

This paper presents an overview of the history and recent efforts in combining chaos theory and evolutionary computation techniques. Various algorithm......

The SEIR Covid-19 model described by fractional-order difference equations: analysis and application with real data in Brazil

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

Several efforts have been recently devoted to the studies on epidemic mathematical models based on fractional-order operators, by virtue of their capa......

Variational principles for pointwise preimage entropies

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

Based on the preimage structure of the system (X,T), Hurley introduced the notion of pointwise topological preimage entropies h(m)(T) and h(p)(T). Fur......

A generalized family of transcendental functions with one dimensional Julia sets

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

A generalized family of transcendental (non-polynomial entire) functions is constructed, where the Hausdorff dimension and the packing dimension of th......

Further WZ-based methods for proving and generalizing Ramanujan's series

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; 29 (3)

In 2002 and 2006, using a Wilf- Zeilberger-based method, Guillera introduced proofs for evaluations for what are considered as the simplest two series......

An exact finite difference scheme for a three-layer beam model

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; 29 (4)

In this work, we propose an efficient computational technique for a recognized three-layer beam model which is described by a third-order linear ordin......

Five classes of pattern avoiding inversion sequences under one roof: generating trees

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; 29 (7)

An inversion sequence of length n is a word $ e=e_0\ldots e_n $ e=e0 horizontal ellipsis en which satisfies for each $ i\in [n]=\{0,1,\ldots,n\} $ i &......

On some rational piecewise linear rotations

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

We study the dynamics of the piecewise planar rotations F-lambda(z) = lambda(z - H(z)), with z is an element of C, H(z) = 1 if Im(z) >= 0, H(z) = -......

Border-collision bifurcations from stable fixed points to any number of coexisting chaotic attractors

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

In diverse physical systems stable oscillatory solutions devolve into more complicated solutions through border-collision bifurcations. Mathematically......

On the dynamics of non-Volterra quadratic operators corresponding to permutations

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

The present paper deals to a family of non-Volterra quadratic stochastic operators depending on a parameter and a permutation and their trajectory beh......

Relatively pointwise recurrence on local dendrites

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

Let X be a local dendrite and let f : X -> X be a continuous map. Denote by P(f) and R(f) the sets of periodic and recurrent points of f, respectiv......

Ultradiscrete hungry Toda equation and eigenvalues over min-plus algebra

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; ()

The recursion formula of the quotient difference algorithm for computing matrix eigenvalues corresponds with the discrete Toda equation, which is well......

A higher-dimensional generalization of the Lozi map: bifurcations and dynamics

期刊: JOURNAL OF DIFFERENCE EQUATIONS AND APPLICATIONS, 2023; 29 (9-12)

We generalize the two-dimensional Lozi map in order to systematically obtain piecewise continuous maps in three and higher dimensions. Similar to high......

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