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Special Issue “Statistical Data Modeling and Machine Learning with Applications II”

open access: yesMathematics, 2023
Currently, we are witnessing rapid progress and synergy between mathematics and computer science [...]
Snezhana Gocheva-Ilieva   +2 more
doaj   +1 more source

Nonlinear Inverse Problems for Equations with Dzhrbashyan–Nersesyan Derivatives

open access: yesFractal and Fractional, 2023
The unique solvability in the sense of classical solutions for nonlinear inverse problems to differential equations, solved for the oldest Dzhrbashyan–Nersesyan fractional derivative, is studied.
Vladimir E. Fedorov   +2 more
doaj   +1 more source

Extreme problems in the space of meromorphic functions of finite order in the half plane. II

open access: yesМатематичні Студії, 2020
The extremal problems in the space of meromorphic functions of order $\rho>0$ in upper half-plane are studed. The method for studying is based on the theory of Fourier coefficients of meromorphic functions.
K.G. Malyutin, A.A. Revenko
doaj   +1 more source

Modelling line edge roughness in periodic line-space structures by Fourier optics to improve scatterometry [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2014
In the present paper, we propose a 2D-Fourier transform method as a simple and efficient algorithm for stochastical and numerical studies to investigate the systematic impacts of line edge roughness on light diffraction pattern of periodic line-space ...
Gross H.   +5 more
doaj   +1 more source

Disentangling the Information in Species Interaction Networks

open access: yesEntropy, 2021
Shannon’s entropy measure is a popular means for quantifying ecological diversity. We explore how one can use information-theoretic measures (that are often called indices in ecology) on joint ensembles to study the diversity of species interaction ...
Michiel Stock   +2 more
doaj   +1 more source

Mathematical analysis of memristor through fractal‐fractional differential operators: A numerical study

open access: yesMathematical methods in the applied sciences, 2020
The newly generalized energy storage component, namely, memristor, which is a fundamental circuit element so called universal charge‐controlled mem‐element, is proposed for controlling the analysis and coexisting attractors.
K. A. Abro, A. Atangana
semanticscholar   +1 more source

Analytic Resolving Families for Equations with the Dzhrbashyan–Nersesyan Fractional Derivative

open access: yesFractal and Fractional, 2022
In this paper, a criterion for generating an analytic family of operators, which resolves a linear equation solved with respect to the Dzhrbashyan–Nersesyan fractional derivative, via a linear closed operator is obtained.
Vladimir E. Fedorov   +2 more
doaj   +1 more source

Topics in Mathematical Analysis [PDF]

open access: yes, 2008
Complex Variables and Potential Theory: Integral Representations in Complex, Hypercomplex and Clifford Analysis (H Begehr) Nonlinear Potential Theory in Metric Spaces (O Martio) Differential Equations and Nonlinear Analysis: Geometric Evolution Problems (G Bellettini) Introduction to Bifurcation Theory (P Drabek) Nonlinear Eigenvalue Problems (P ...
CIATTI, PAOLO   +3 more
openaire   +4 more sources

Mathematical Analysis of Novel Coronavirus (2019-nCov) Delay Pandemic Model

open access: yesComputers Materials & Continua, 2020
In this manuscript, the mathematical analysis of corona virus model with time delay effect is studied Mathematical modelling of infectious diseases has substantial role in the different disciplines such as biological, engineering, physical, social ...
Muhammad Naveed   +6 more
semanticscholar   +1 more source

Assessment of Students’ Achievements and Competencies in Mathematics Using CART and CART Ensembles and Bagging with Combined Model Improvement by MARS

open access: yesMathematics, 2020
The aim of this study is to evaluate students’ achievements in mathematics using three machine learning regression methods: classification and regression trees (CART), CART ensembles and bagging (CART-EB) and multivariate adaptive regression splines ...
Snezhana Gocheva-Ilieva   +2 more
doaj   +1 more source

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