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Sotiris K. Ntouyas

Sotiris K. Ntouyas

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Mathematics
Greece
2026

D-Index & Metrics

Mathematics

D-Index
57
Citations
14616
World Ranking
684
National Ranking
3

Research.com Recognitions

  • 2026 - Research.com Mathematics in Greece Leader Award
  • 2025 - Research.com Mathematics in Greece Leader Award
  • 2023 - Research.com Mathematics in Greece Leader Award

Overview

Sotiris K. Ntouyas is affiliated with the University of Ioannina in Greece, actively contributing to the field of mathematics. Their research centers on applied mathematics with particular focus on nonlinear differential equations, fractional differential equations, and the analysis of boundary value problems.

The body of their work encompasses a number of subfields including applied mathematics, modeling and simulation, numerical analysis, geometry and topology, as well as mechanics of materials. These areas reflect a broad yet interconnected research portfolio within mathematical sciences.

The main topics addressed in their research include the following:

  • Nonlinear Differential Equations Analysis
  • Fractional Differential Equations Solutions
  • Differential Equations and Boundary Problems
  • Differential Equations and Numerical Methods
  • Mathematical Inequalities and Applications
  • Mathematical Functions and Polynomials
  • Functional Equations Stability Results

The recent scholarly publications featuring contributions from Sotiris K. Ntouyas include:

  • Nonlocal boundary value problems for Hilfer-type pantograph fractional differential equations and inclusions, 2020, Advances in Difference Equations
  • A study of coupled systems of mixed order fractional differential equations and inclusions with coupled integral fractional boundary conditions, 2020, Advances in Difference Equations
  • Qualitative Study on Solutions of a Hadamard Variable Order Boundary Problem via the Ulam-Hyers-Rassias Stability, 2021, Fractal and Fractional
  • Existence and stability results for -Hilfer fractional integro-differential equation with mixed nonlocal boundary conditions, 2021, AIMS Mathematics
  • Boundary Value Problems for Hilfer Fractional Differential Inclusions with Nonlocal Integral Boundary Conditions, 2020, Mathematics

The scientist's collaboration network includes frequent co-authors such as Jessada Tariboon, Bashir Ahmad, Ahmed Alsaedi, Kamsing Nonlaopon, and Ayub Samadi, indicating sustained collaborative research efforts.

The venues where this researcher regularly publishes reflect their area of expertise and include Mathematics, AIMS Mathematics, Axioms, Fractal and Fractional, and Symmetry. These journals feature multiple works by the scientist, highlighting a consistent contribution to these scholarly platforms.

In addition to articles, they have authored a book titled Nonlocal Nonlinear Fractional-Order Boundary Value Problems published by World Scientific in 2020, further contributing to the academic literature in fractional calculus and boundary value problems.

Best Publications

  • Impulsive Differential Equations and Inclusions

    Mouffak Benchohra;Johnny Henderson;Sotiris K. Ntouyas

  • Existence results for fractional order functional differential equations with infinite delay

    M. Benchohra;J. Henderson;S.K. Ntouyas;A. Ouahab

  • Boundary value problems for differential equations with fractional order and nonlocal conditions

    M. Benchohra;S. Hamani;S.K. Ntouyas

  • Hadamard-Type Fractional Differential Equations, Inclusions and Inequalities

    Bashir Ahmad;Ahmed Alsaedi;Sotiris K. Ntouyas;Jessada Tariboon

  • Quantum calculus on finite intervals and applications to impulsive difference equations

    Jessada Tariboon;Sotiris K Ntouyas

  • BOUNDARY VALUE PROBLEMS FOR DIFFERENTIAL EQUATIONS WITH FRACTIONAL ORDER

    Mouffak Benchohra;Samira Hamani;Sotiris K. Ntouyas

  • Global Existence for Semilinear Evolution Equations with Nonlocal Conditions

    S.K. Ntouyas;P.Ch. Tsamatos

  • Quantum integral inequalities on finite intervals

    Jessada Tariboon;Sotiris K Ntouyas

  • Solvability of an m-Point Boundary Value Problem for Second Order Ordinary Differential Equations

    C.P. Gupta;S.K. Ntouyas;P.C. Tsamatos

  • New Existence Results for Nonlinear Fractional Differential Equations with Three-Point Integral Boundary Conditions

    Bashir Ahmad;SotirisK K Ntouyas;Ahmed Alsaedi

  • Existence results for nonlocal boundary value problems of nonlinear fractional q-difference equations

    Bashir Ahmad;Sotiris K Ntouyas;Ioannis K Purnaras

  • Quantum integral inequalities for convex functions

    Weerawat Sudsutad;Sotiris K. Ntouyas;Jessada Tariboon

  • A fully Hadamard type integral boundary value problem of a coupled system of fractional differential equations

    Bashir Ahmad;Sotiris K. Ntouyas

  • New concepts of fractional quantum calculus and applications to impulsive fractional q-difference equations

    Jessada Tariboon;Sotiris K Ntouyas;Praveen Agarwal

  • On a coupled system of fractional differential equations with coupled nonlocal and integral boundary conditions

    Bashir Ahmad;Sotiris K. Ntouyas;Sotiris K. Ntouyas;Ahmed Alsaedi

  • On an m -point boundary-value problem for second-order ordinary differential equations

    Chaitan P. Gupta;S. K. Ntouyas;P. Ch. Tsamatos

  • Existence results for a coupled system of Caputo type sequential fractional differential equations with nonlocal integral boundary conditions

    Bashir Ahmad;Sotiris K. Ntouyas

  • Existence results for nonlocal boundary value problems of fractional differential equations and inclusions with strip conditions

    Bashir Ahmad;Sotiris K Ntouyas

  • Existence results for hybrid fractional integro-differential equations

    Surang Sitho;Sotiris K Ntouyas;Sotiris K Ntouyas;Jessada Tariboon

  • Controllability for neutral stochastic functional differential inclusions with infinite delay in abstract space

    P. Balasubramaniam;S.K. Ntouyas

  • Nonlocal Cauchy Problems for Neutral Functional Differential and Integrodifferential Inclusions in Banach Spaces

    M. Benchohra;S.K. Ntouyas

Frequent Co-Authors

Bashir Ahmad
Bashir Ahmad King Abdulaziz University
Mouffak Benchohra
Mouffak Benchohra Université Djillali Liabes
Ravi P. Agarwal
Ravi P. Agarwal Florida Institute of Technology
Johnny Henderson
Johnny Henderson Baylor University
Praveen Agarwal
Praveen Agarwal Anand International College of Engineering, Jaipur
Pagavathigounder Balasubramaniam
Pagavathigounder Balasubramaniam Gandhigram Rural Institute
Donal O'Regan
Donal O'Regan University of Galway
Hari M. Srivastava
Hari M. Srivastava University of Victoria
Reza Saadati
Reza Saadati Iran University of Science and Technology
Soheil Salahshour
Soheil Salahshour Istanbul Okan University

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