Results 51 to 60 of about 862 (130)
Recovering discrete delayed fractional equations from trajectories
Mathematical Methods in the Applied Sciences, Volume 48, Issue 7, Page 7630-7640, 15 May 2025.We show how machine learning methods can unveil the fractional and delayed nature of discrete dynamical systems. In particular, we study the case of the fractional delayed logistic map. We show that given a trajectory, we can detect if it has some delay effect or not and also to characterize the fractional component of the underlying generation model.
J. Alberto Conejero +2 more
wiley +1 more source
Plant Pathology, Volume 74, Issue 4, Page 1010-1023, May 2025.Research on FADN farms shows that Xylella fastidiosa subsp. pauca in Salento (southern Italy) caused an economic loss of €132 million and reduced 1,050,000 working hours at olive farms level. ABSTRACT The rapid spread of Xylella fastidiosa subsp. pauca (Xfp) in the Salento area (Apulia region, southern Italy) has caused extensive socio‐economic damage ...
Federica Calderoni +4 more
wiley +1 more source
I-Cesàro summability of sequences of sets [PDF]
, 2017 In this paper, we defined concept of Wijsman I-Cesàro summability for sequences of sets and investigate the relationships between the concepts of Wijsman strongly I-Cesàro summability, Wijsman strongly I-lacunary summability, Wijsman p-strongly I-Cesàro ...
Kişi, Ömer, Ulusu, Uğur
core
Substitutions on compact alphabets
Journal of the London Mathematical Society, Volume 111, Issue 3, March 2025.Abstract We develop a systematic approach to continuous substitutions on compact Hausdorff alphabets. Focussing on implications of irreducibility and primitivity, we highlight important features of the topological dynamics of their (generalised) subshifts.
Neil Mañibo, Dan Rust, James J. Walton
wiley +1 more source
On Divergence of Fourier Series by Some Methods of Summability
Journal of Function Spaces and Applications, 2012 A new summability method of series is introduced and studied. The particular cases of this method are, for example, variable-order Cesaro and Riesz methods. Applications to divergence problem of Fourier series are given.
Shakro Tetunashvili
doaj +1 more source
Ergodic averages along sequences of slow growth
Journal of the London Mathematical Society, Volume 111, Issue 3, March 2025.Abstract We consider pointwise almost everywhere convergence of weighted ergodic averages along the sequence Ω(n)$ \Omega (n)$, where Ω(n)$ \Omega (n)$ denotes the number of prime factors of n$ n$ counted with multiplicities. It was previously shown that a pointwise ergodic theorem for L∞$L^\infty$ functions does not hold along Ω(n)$ \Omega (n)$.
Kaitlyn Loyd, Sovanlal Mondal
wiley +1 more source
Characterizations of summability methods derived by q-Cesàro matrix
Dera Natung Government College Research JournalThe present study mainly aims to introduce the absolute summability method derived from the transformation matrix obtained by the -Cesàro matrix and to establish the necessary and sufficient conditions for and where In addition, by ...
Fadime Gökçe
doaj +1 more source
Bootstrapping non‐stationary and irregular time series using singular spectral analysis
Journal of Time Series Analysis, Volume 46, Issue 1, Page 81-112, January 2025.This article investigates the consequences of using Singular Spectral Analysis (SSA) to construct a time series bootstrap. The bootstrap replications are obtained via a SSA decomposition obtained using rescaled trajectories (RT‐SSA), a procedure that is particularly useful in the analysis of time series that exhibit nonlinear, non‐stationary and ...
Don S. Poskitt
wiley +1 more source
Advances in Mathematical Physics, Volume 2025, Issue 1, 2025.Various significant problems in physics and astrophysics have been successfully solved using fractional kinetic equations (FKEs) and special functions. This study applies the Elzaki integral transform to FKEs incorporating orthogonal polynomials and their generating functions.
Mulualem Aychluh +4 more
wiley +1 more source
On the $\Delta _{{\Lambda ^2}}^f$-Statistical Convergence on Product Time Scale
Universal Journal of Mathematics and Applications, 2020 In this paper, we first define a new density of a $\Delta $-measurable subset of a product time scale ${\Lambda ^2}$ with respect to an unbounded modulus function.
Metin Basarır +2 more
doaj +1 more source