Results 31 to 40 of about 806,938 (302)

Existence and Uniqueness Results for Hadamard-Type Fractional Differential Equations with Nonlocal Fractional Integral Boundary Conditions

open access: yesAbstract and Applied Analysis, 2014
We study the existence and uniqueness of solutions for a fractional boundary value problem involving Hadamard-type fractional differential equations and nonlocal fractional integral boundary conditions. Our results are based on some classical fixed point
Phollakrit Thiramanus   +2 more
doaj   +1 more source

Output Feedback Control for Asymptotic Stabilization of Spacecraft with Input Saturation

open access: yesJournal of Control Science and Engineering, 2017
This paper investigates the attitude stabilization problem of rigid spacecraft subject to actuator constraints, external disturbances, and attitude measurements only.
Chutiphon Pukdeboon
doaj   +1 more source

Double symbolic joint entropy in nonlinear dynamic complexity analysis

open access: yes, 2017
Symbolizations, the base of symbolic dynamic analysis, are classified as global static and local dynamic approaches which are combined by joint entropy in our works for nonlinear dynamic complexity analysis.
Wang, Jun, Yao, Wenpo
core   +2 more sources

Inverse Optimal Attitude Stabilization of Flexible Spacecraft with Actuator Saturation

open access: yesInternational Journal of Aerospace Engineering, 2016
This paper presents a new robust inverse optimal control strategy for flexible spacecraft attitude maneuvers in the presence of external disturbances and actuator constraint. A new constrained attitude controller for flexible spacecraft is designed based
Chutiphon Pukdeboon
doaj   +1 more source

Some generalized Riemann-Liouville k-fractional integral inequalities

open access: yesJournal of Inequalities and Applications, 2016
The focus of the present study is to prove some new Pólya-Szegö type integral inequalities involving the generalized Riemann-Liouville k-fractional integral operator.
Praveen Agarwal   +2 more
doaj   +1 more source

On (k,ψ)-Hilfer Fractional Differential Equations and Inclusions with Mixed (k,ψ)-Derivative and Integral Boundary Conditions

open access: yesAxioms, 2022
In this paper we study single-valued and multi-valued (k,ψ)-Hilfer-type boundary value problems of fractional order in (1,2], subject to nonlocal boundary conditions involving (k,ψ)-Hilfer-type derivative and integral operators.
Sotiris K. Ntouyas   +3 more
doaj   +1 more source

Quantum Difference Langevin System with Nonlocal q-Derivative Conditions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2016
We introduce a new class of boundary value problems for Langevin quantum difference systems. Some new existence and uniqueness results for coupled systems are obtained by using fixed point theorems.
Surang Sitho   +3 more
doaj   +1 more source

Sequential Fractional Hybrid Inclusions: A Theoretical Study via Dhage’s Technique and Special Contractions

open access: yesMathematics, 2022
The most important objective of the present research is to establish some theoretical existence results on a novel combined configuration of a Caputo sequential inclusion problem and the hybrid integro-differential one in which the boundary conditions ...
Sina Etemad   +4 more
doaj   +1 more source

Nonlinear Dynamic Analysis of Rotor‐Bearing System with Cubic Nonlinearity

open access: yesShock and Vibration, 2021
Nonlinear dynamic characteristics of a rotor‐bearing system with cubic nonlinearity are investigated. The comprehensive effects of the unbalanced excitation, the internal clearance, the nonlinear Hertzian contact force, the varying compliance vibration, and the nonlinear stiffness of support material are considered.
Guofang Nan   +3 more
openaire   +2 more sources

Oscillation of impulsive conformable fractional differential equations

open access: yesOpen Mathematics, 2016
In this paper, we investigate oscillation results for the solutions of impulsive conformable fractional differential equations of the ...
Tariboon Jessada, Ntouyas Sotiris K.
doaj   +1 more source

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