English
Related papers

Related papers: Diamond-alpha Integral Inequalities on Time Scales

200 papers

We prove necessary optimality conditions of Euler-Lagrange type for generalized problems of the calculus of variations on time scales with a Lagrangian depending not only on the independent variable, an unknown function and its delta…

Optimization and Control · Mathematics 2011-05-02 Natalia Martins , Delfim F. M. Torres

The fundamental problem of the calculus of variations on time scales concerns the minimization of a delta-integral over all trajectories satisfying given boundary conditions. This includes the discrete-time, the quantum, and the…

Optimization and Control · Mathematics 2010-09-29 Agnieszka B. Malinowska , Delfim F. M. Torres

In this paper, we present a time scale version of the Hermite-Hadamard inequality for functions convex on the coordinates via the diamond-$\alpha$ calculus. Our results are new and they generalize and extend a result due to Dragomir.

Dynamical Systems · Mathematics 2017-06-27 Eze R. Nwaeze

In this paper, some new integral inequalities on time scales are presented by using elementarily analytic methods in calculus of time scales.

Classical Analysis and ODEs · Mathematics 2013-11-05 Li Yin , Feng Qi

We discuss the use of inequalities to obtain the solution of certain variational problems on time scales.

Optimization and Control · Mathematics 2012-11-05 Martin J. Bohner , Rui A. C. Ferreira , Delfim F. M. Torres

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

This paper aims to introduce Halanay type inequalities on time scales. By means of these inequalities we derive new global stability conditions for nonlinear dynamic equations on time scales. Giving several examples we show that beside…

Classical Analysis and ODEs · Mathematics 2016-08-14 Murat Adıvar , Elvan Akın Bohner

In this paper we obtain some weighted generalizations of Ostrowski type inequalities on time scales involving combination of weighted {\Delta}-integral means, i.e., a weighted Ostrowski type inequality on time scales involving combination…

Functional Analysis · Mathematics 2012-07-19 Wenjun Liu , Hüseyin Rüzgar , Adnan Tuna

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

The calculus of variations on time scales is considered. We propose a new approach to the subject that consists in applying a differentiation tool called the contingent epiderivative. It is shown that the contingent epiderivative applied to…

Optimization and Control · Mathematics 2012-02-03 Ewa Girejko , Agnieszka B. Malinowska , Delfim F. M. Torres

In this paper we first extend a generalization of Ostrowski type inequality on time scales for functions whose derivatives are bounded and then unify corresponding continuous and discrete versions. We also point out some particular integral…

General Mathematics · Mathematics 2011-04-05 Wenjun Liu , Quoc Anh Ngo , Wenbin Chen

A conformable time-scale fractional calculus of order $\alpha \in ]0,1]$ is introduced. The basic tools for fractional differentiation and fractional integration are then developed. The Hilger time-scale calculus is obtained as a particular…

Classical Analysis and ODEs · Mathematics 2015-12-24 Nadia Benkhettou , Salima Hassani , Delfim F. M. Torres

The main objective of the paper is to establish explicit estimates on some applicable inequalities in two variables on time scales which can be used in the study of certain qualitative properties of dynamical equations on time scales.

Analysis of PDEs · Mathematics 2015-06-19 Deepak B. Pachpatte

We establish some linear and nonlinear integral inequalities of Gronwall-Bellman-Bihari type for functions with two independent variables on general time scales. The results are illustrated with examples, obtained by fixing the time scales…

Classical Analysis and ODEs · Mathematics 2009-03-06 Rui A. C. Ferreira , Delfim F. M. Torres

We prove a necessary optimality condition of Euler-Lagrange type for variational problems on time scales involving nabla derivatives of higher-order. The proof is done using a new and more general fundamental lemma of the calculus of…

Optimization and Control · Mathematics 2009-11-13 Natalia Martins , Delfim F. M. Torres

This article is devoted to completing some aspects of the classical Cauchy-Lipschitz (or Picard-Lindel\"of) theory for general nonlinear systems posed on time scales, that are closed subsets of the set of real numbers. Partial results do…

Optimization and Control · Mathematics 2012-12-21 Loïc Bourdin , Emmanuel Trélat

We define a symmetric derivative on an arbitrary nonempty closed subset of the real numbers and derive some of its properties. It is shown that real-valued functions defined on time scales that are neither delta nor nabla differentiable can…

Classical Analysis and ODEs · Mathematics 2012-10-24 Artur M. C. Brito da Cruz , Natalia Martins , Delfim F. M. Torres

The main objective of this paper is to establish the $Y$-function and L'Hospital-type monotonicity rules with nabla and diamond-alpha derivatives on time scales.

Classical Analysis and ODEs · Mathematics 2024-01-24 Xiao-Yue Du , Zhong-Xuan Mao , Jing-Feng Tian

We prove a version of the Euler-Lagrange equations for certain problems of the calculus of variations on time scales with higher-order delta derivatives.

Optimization and Control · Mathematics 2009-08-13 Rui A. C. Ferreira , Delfim F. M. Torres

We prove a necessary optimality condition for isoperimetric problems under nabla-differentiable curves. As a consequence, the recent results of [M.R. Caputo, A unified view of ostensibly disparate isoperimetric variational problems, Appl.…

Optimization and Control · Mathematics 2009-05-21 Ricardo Almeida , Delfim F. M. Torres