Approximate Controllability of Fractional Evolution Equations Via Solution Operators

2020 ◽  
Vol 29 (2) ◽  
Author(s):  
Pengyu Chen ◽  
Kaibin Zhang ◽  
Yanli Xi
Keyword(s):  
Approximate Controllability ◽  
Evolution Equations ◽  
Fractional Evolution Equations

Existence and approximate controllability of fractional evolution equations with nonlocal conditions via resolvent operators

2020 ◽  
Vol 23 (1) ◽  
pp. 268-291 ◽  
Author(s):  
Pengyu Chen ◽  
Xuping Zhang ◽  
Yongxiang Li
Keyword(s):  
Resolvent Operator ◽  
Approximate Controllability ◽  
Evolution Equations ◽  
Control Function ◽  
Mild Solutions ◽  
Nonlocal Conditions ◽  
Sufficient Conditions ◽  
Resolvent Operators ◽  
Fractional Evolution Equations ◽  
Theoretical Results

AbstractIn this article, we are concerned with the existence of mild solutions as well as approximate controllability for a class of fractional evolution equations with nonlocal conditions in Banach spaces. Sufficient conditions of existence of mild solutions and approximate controllability for the desired problem are presented by introducing a new Green’s function and constructing a control function involving Gramian controllability operator. The discussions are based on Schauder’s fixed point theorem as well as the theory of α-order solution operator and α-order resolvent operator. An example is given to illustrate the feasibility of our theoretical results.

scholarly journals On the Approximate Controllability of Fractional Evolution Equations with Generalized Riemann-Liouville Fractional Derivative

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
N. I. Mahmudov ◽  
M. A. McKibben
Keyword(s):  
Fixed Point ◽  
Linear System ◽  
Fractional Derivative ◽  
Approximate Controllability ◽  
Evolution Equations ◽  
Semigroup Theory ◽  
Abstract Theory ◽  
Fractional Evolution Equations ◽  
Liouville Fractional Derivative ◽  
Approximately Controllable

We discuss the approximate controllability of fractional evolution equations involving generalized Riemann-Liouville fractional derivative. The results are obtained with the help of the theory of fractional calculus, semigroup theory, and the Schauder fixed point theorem under the assumption that the corresponding linear system is approximately controllable. Finally, an example is provided to illustrate the abstract theory.

scholarly journals Existence and approximate controllability of Hilfer fractional evolution equations with almost sectorial operators

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Pallavi Bedi ◽  
Anoop Kumar ◽  
Thabet Abdeljawad ◽  
Zareen A. Khan ◽  
Aziz Khan
Keyword(s):  
Banach Space ◽  
Approximate Controllability ◽  
Evolution Equations ◽  
Control Function ◽  
Mild Solutions ◽  
Nonlocal Conditions ◽  
Existence Results ◽  
Fractional Evolution Equations ◽  
Sectorial Operators ◽  
Almost Sectorial Operators

Abstract In this article, we are concerned with the existence of mild solutions and approximate controllability of Hilfer fractional evolution equations with almost sectorial operators and nonlocal conditions. The existence results are obtained by first defining Green’s function and approximate controllability by specifying a suitable control function. These results are established with the help of Schauder’s fixed point theorem and theory of almost sectorial operators in a Banach space. An example is also presented for the demonstration of obtained results.

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