Dr. Saïd Abbas is a Full Professor at the Department of Mathematics at Tahar Moulay University of Saida, Algeria. Dr. Abbas received his MSc in Functional Analysis from Mostaganem University, Algeria, and his PhD in Differential Equations from Djillali Liabes University of Sidi Bel Abbes, Algeria. His research fields include fractional differential equations and inclusions, evolution equations and inclusions, control theory and applications, and other topics in applied mathematics. Dr. Abbas is the author of Topics in Fractional Differential Equations, Springer; Advanced Functional Evolution Equations and Inclusions, Springer; Fractional Differential Equations and Inclusions: Classical and Advanced Topics, World Scientific; and Implicit Fractional Differential and Integral Equations, DeGruyter. Dr. Bashir Ahmad is a Full Professor of Mathematics at King Abdulaziz University, Jeddah, Saudi Arabia. He received his Ph.D. from Quaid-i-Azam University, Islamabad, Pakistan. His research interest includes approximate/numerical methods for nonlinear problems involving a variety of differential equations, existence theory of fractional differential equations, stability and instability properties of dynamical systems, impulsive systems, control theory, mathematical biology, and fluid mechanics. He was honored with “Best Researcher of King Abdulaziz University” award in 2009. He is the Managing Editor of Bulletin of Mathematical Sciences, Editor-in-Chief of the journal Fractional Differential Calculus, and member of editorial boards of several journals. He has been “Highly-Cited Researcher” in the category of Mathematics (Web of Science/Clarivate Analytics) from 2014 to 2019. Dr. Mouffak Benchohra is a Full Professor in the Department of Mathematics, Djillali Liabes University of Sidi Bel Abbes. Dr. Benchohra received his MSc in Nonlinear Analysis from Tlemcen University, Algeria, and his PhD in Mathematics from Djillali Liabes University, Sidi Bel Abbes, Algeria. His research fields include fractional differential equations, evolution equations and inclusions, control theory and applications, and other topics in applied mathematics. Dr. Benchohra is the author of Topics in Fractional Differential Equations, Springer; Advanced Functional Evolution Equations and Inclusions, Springer; Fractional Differential Equations and Inclusions: Classical and Advanced Topics, World Scientific; and Implicit Fractional Differential and Integral Equations, DeGruyter.He is a Highly Cited Researcher in Mathematics from Thompson Reuters (2014) and Clarivate Analytics (2017 and 2018). He is also among the top 2% researchers in the world (2020, 2021, 2022) released by Stanford University. Dr. Benchohra has also been the chair of the Department of Mathematics at Djillali Liabes University, Sidi Bel Abbes, and he serves on the Editorial Board of 10 international journals. Dr. Abdelrkim Salim is an Associate Professor at the Faculty of Technology, Hassiba Benbouali University of Chlef, Algeria. Salim received his MSc in functional analysis and differential equations, and his PhD in mathematical analysis and applications from Djillali Liabes University of Sidi Bel Abbes, Algeria. His research fields include fractional differential equations and inclusions, control theory and applications, and other topics in applied mathematics.

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• 1. Preliminary Background2. Caputo Fractional Difference Equations in Banach Spaces3. Caputo Fractional Difference Inclusions4. Ulam Stability for Fractional Difference Equations5. Impulsive Fractional Difference Equations6. Coupled Fractional Difference Systems7. Coupled Caputo-Hadamard Fractional Differential Systems in Generalized Banach Spaces8. Coupled Hilfer-Hadamard Fractional Differential Systems in Generalized Banach Spaces9. Oscillation and Nonoscillation Results for Fractional q-Difference Equations and Inclusions10. A Filippov's Theorem and Topological Structure of Solution Sets for Fractional q-Difference Inclusions11. On ψ -Caputo Fractional Differential Equations in Banach Spaces12. Ulam Stability for ψ -Caputo Fractional Differential Equations and Systems13. Monotone Iterative Technique for psi-Caputo Fractional Differential Equations

Dr. Saïd Abbas is a Full Professor at the Department of Mathematics at Tahar Moulay University of Saida, Algeria. Dr. Abbas received his MSc in Functional Analysis from Mostaganem University, Algeria, and his PhD in Differential Equations from Djillali Liabes University of Sidi Bel Abbes, Algeria. His research fields include fractional differential equations and inclusions, evolution equations and inclusions, control theory and applications, and other topics in applied mathematics. Dr. Abbas is the author of Topics in Fractional Differential Equations, Springer; Advanced Functional Evolution Equations and Inclusions, Springer; Fractional Differential Equations and Inclusions: Classical and Advanced Topics, World Scientific; and Implicit Fractional Differential and Integral Equations, DeGruyter. Dr. Bashir Ahmad is a Full Professor of Mathematics at King Abdulaziz University, Jeddah, Saudi Arabia. He received his Ph.D. from Quaid-i-Azam University, Islamabad, Pakistan. His research interest includes approximate/numerical methods for nonlinear problems involving a variety of differential equations, existence theory of fractional differential equations, stability and instability properties of dynamical systems, impulsive systems, control theory, mathematical biology, and fluid mechanics. He was honored with “Best Researcher of King Abdulaziz University” award in 2009. He is the Managing Editor of Bulletin of Mathematical Sciences, Editor-in-Chief of the journal Fractional Differential Calculus, and member of editorial boards of several journals. He has been “Highly-Cited Researcher” in the category of Mathematics (Web of Science/Clarivate Analytics) from 2014 to 2019. Dr. Mouffak Benchohra is a Full Professor in the Department of Mathematics, Djillali Liabes University of Sidi Bel Abbes. Dr. Benchohra received his MSc in Nonlinear Analysis from Tlemcen University, Algeria, and his PhD in Mathematics from Djillali Liabes University, Sidi Bel Abbes, Algeria. His research fields include fractional differential equations, evolution equations and inclusions, control theory and applications, and other topics in applied mathematics. Dr. Benchohra is the author of Topics in Fractional Differential Equations, Springer; Advanced Functional Evolution Equations and Inclusions, Springer; Fractional Differential Equations and Inclusions: Classical and Advanced Topics, World Scientific; and Implicit Fractional Differential and Integral Equations, DeGruyter.He is a Highly Cited Researcher in Mathematics from Thompson Reuters (2014) and Clarivate Analytics (2017 and 2018). He is also among the top 2% researchers in the world (2020, 2021, 2022) released by Stanford University. Dr. Benchohra has also been the chair of the Department of Mathematics at Djillali Liabes University, Sidi Bel Abbes, and he serves on the Editorial Board of 10 international journals. Dr. Abdelrkim Salim is an Associate Professor at the Faculty of Technology, Hassiba Benbouali University of Chlef, Algeria. Salim received his MSc in functional analysis and differential equations, and his PhD in mathematical analysis and applications from Djillali Liabes University of Sidi Bel Abbes, Algeria. His research fields include fractional differential equations and inclusions, control theory and applications, and other topics in applied mathematics.

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• 1. Preliminary Background2. Caputo Fractional Difference Equations in Banach Spaces3. Caputo Fractional Difference Inclusions4. Ulam Stability for Fractional Difference Equations5. Impulsive Fractional Difference Equations6. Coupled Fractional Difference Systems7. Coupled Caputo-Hadamard Fractional Differential Systems in Generalized Banach Spaces8. Coupled Hilfer-Hadamard Fractional Differential Systems in Generalized Banach Spaces9. Oscillation and Nonoscillation Results for Fractional q-Difference Equations and Inclusions10. A Filippov's Theorem and Topological Structure of Solution Sets for Fractional q-Difference Inclusions11. On ψ -Caputo Fractional Differential Equations in Banach Spaces12. Ulam Stability for ψ -Caputo Fractional Differential Equations and Systems13. Monotone Iterative Technique for psi-Caputo Fractional Differential Equations