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Related papers: A Truly Conformable Calculus on Time Scales

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We study more general variational problems on time scales. Previous results are generalized by proving necessary optimality conditions for (i) variational problems involving delta derivatives of more than the first order, and (ii) problems…

Optimization and Control · Mathematics 2007-05-23 Rui A. C. Ferreira , Delfim F. M. Torres

We set the main concepts for multiplicative fractional calculus. We define Caputo, Riemann and Letnikov multiplicative fractional derivatives and multiplicative fractional integrals and study some of their properties. Finally, the…

Classical Analysis and ODEs · Mathematics 2016-09-20 Thabet Abdeljawad

We believe that the difference between time scale systems and ordinary differential equations is not as big as people use to think. We consider linear operators that correspond to linear dynamic systems on time scales. We study solvability…

Dynamical Systems · Mathematics 2017-11-16 Sergey Kryzhevich

The problem of existence of solutions to nabla differential equations and nabla differential inclusions on time scales is considered. Under a special form of the set-valued constraint map, sufficient conditions for the existence of at least…

Classical Analysis and ODEs · Mathematics 2012-07-23 Ewa Girejko , Delfim F. M. Torres

Homoclinic and heteroclinic motions in dynamics equations on time scales is investigated. The utilized time scale is a specific one such that it is a union of disjoint compact intervals. A numerical example that supports the theoretical…

Chaotic Dynamics · Physics 2016-01-20 Mehmet Onur Fen

We introduce an original approach to geometric calculus in which we define derivatives and integrals on functions which depend on extended bodies in space--that is, paths, surfaces, and volumes etc. Though this theory remains to be fully…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Theodore G. Erler

We prove that conformable ``fractional" differentiability of a function $f:[0,\infty[\,\longrightarrow \mathbb{R}$ is nothing else than the classical differentiability. More precisely, the conformable $\alpha$-derivative of $f$ at some…

Classical Analysis and ODEs · Mathematics 2024-02-12 Ahmed A. Abdelhakim , José A. Tenreiro Machado

Positive linear systems on arbitrary time scales are studied. The theory developed in the paper unifies and extends concepts and results known for continuous-time and discrete-time systems. A necessary and sufficient condition for a linear…

Optimization and Control · Mathematics 2012-04-17 Zbigniew Bartosiewicz

Derivation-based differential calculi are of great importance in noncommutative geometry, noncommutative gauge theory and integrable systems. In this paper, we propose the connection and curvature from a class of deformed derivation-based…

Mathematical Physics · Physics 2014-12-02 Yongqiang Bai , Ming Pei , Huijuan Fu

We derive Taylor's Formula for conformable fractional derivatives. This is then employed to extend some recent and classical integral inequalities to the conformable fractional calculus, including the inequalities of Steffensen, Chebychev,…

Classical Analysis and ODEs · Mathematics 2014-09-23 Douglas R. Anderson

This paper is devoted to constructing and studying exactly solvable dynamical systems in discrete time obtained from some algebraic operations on matrices, to reductions of such systems leading to classical field theory models in…

solv-int · Physics 2008-02-03 I. G. Korepanov

Spacetimes which are conformally related to reducible 1+3 spacetimes are considered. We classify these spacetimes according to the conformal algebra of the underlying reducible spacetime, giving in each case canonical expressions for the…

General Relativity and Quantum Cosmology · Physics 2013-08-09 Jaume Carot , Aidan J Keane , Brian O J Tupper

A new definition of a multi-valued logarithm on time scales is introduced for delta-differentiable functions that never vanish. This new logarithm arises naturally from the definition of the cylinder transformation that is also at the heart…

Classical Analysis and ODEs · Mathematics 2020-01-28 Douglas R. Anderson , Martin Bohner

Conformable derivatives provide a fractional-looking calculus that remains local and admits a simple representation through classical derivatives with explicit weights. In this paper we develop a systematic operator-theoretic perspective…

Analysis of PDEs · Mathematics 2026-01-08 Mohamed Khoulane , Aziz El Ghazouani , M'hamed El Omari

We present a new approach to exponential functions on time scales and to timescale analogues of ordinary differential equations. We describe in detail the Cayley-exponential function and associated trigonometric and hyperbolic functions. We…

Classical Analysis and ODEs · Mathematics 2023-03-20 Jan L. Cieśliński

We establish some nonlinear integral inequalities for functions defined on a time scale. The results extend some previous Gronwall and Bihari type inequalities on time scales. Some examples of time scales for which our results can be…

Classical Analysis and ODEs · Mathematics 2009-06-11 Rui A. C. Ferreira , Delfim F. M. Torres

We apply the topology of convergence on compact sets to define unpredictable functions [5, 6]. The topology is metrizable and easy for applications with integral operators. To demonstrate the effectiveness of the approach, the existence and…

Chaotic Dynamics · Physics 2016-11-17 Marat Akhmet , Mehmet Onur Fen

Conformal predictions make it possible to define reliable and robust learning algorithms. But they are essentially a method for evaluating whether an algorithm is good enough to be used in practice. To define a reliable learning framework…

Machine Learning · Statistics 2024-03-18 Alberto Carlevaro , Teodoro Alamo Cantarero , Fabrizio Dabbene , Maurizio Mongelli

We provide an overview of theories of continuous time computation. These theories allow us to understand both the hardness of questions related to continuous time dynamical systems and the computational power of continuous time analog…

Computational Complexity · Computer Science 2009-07-20 Olivier Bournez , Manuel Campagnolo

Dynamical systems are abstract models of interaction between space and time. They are often used in fields such as physics and engineering to understand complex processes, but due to their general nature, they have found applications for…

Logic · Mathematics 2023-06-01 David Fernández-Duque , Yoàv Montacute