2026 Athanasios C. Antoulas: Mathematics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Mathematics	38	2270	2010	958	797	201	13049

Research.com Recognitions

1992 - IEEE Fellow For contributions to the theory of linear system realization.

Overview

Athanasios C. Antoulas is affiliated with Rice University in the United States and has contributed extensively to the fields of engineering and physics, particularly focusing on control and systems engineering as well as statistical and nonlinear physics. Their research addresses topics including model reduction and neural networks, control systems and identification, probabilistic and robust engineering design, real-time simulation and control systems, hydraulic and pneumatic systems, fault detection and control systems, and fuel cells and related materials.

The scientist has a substantial record of publications in notable venues, including arXiv (Cornell University), PAMM, IFAC-PapersOnLine, Journal of Power Sources, and Advances in Computational Mathematics. Their recent papers cover a range of topics related to data-driven modeling and the Loewner framework, often applied to electrochemical systems and relaxation time distributions.

Introducing the Loewner Method as a Data-Driven and Regularization-Free Approach for the Distribution of Relaxation Times Analysis of Lithium-Ion Batteries (2023), published in Batteries
Preserving the DAE structure in the Loewner model reduction and identification framework (2020), published in Advances in Computational Mathematics
Rational approximation of the absolute value function from measurements: a numerical study of recent methods (2020), published in arXiv (Cornell University)
Loewner Framework and Distribution of Relaxation Times of Electrochemical Systems: Solving Issues Through a Data-Driven Modeling Approach (2022), published in SSRN Electronic Journal
Determination of the distribution of relaxation times through Loewner framework: A direct and versatile approach (2023), published in Journal of Power Sources

Athanasios C. Antoulas collaborates frequently with several researchers, including Ion Victor Gosea, Dimitrios S. Karachalios, Charles Poussot-Vassal, Tanja Vidaković-Koch, and Antonio Sorrentino. These collaborations have resulted in numerous publications, particularly in areas related to mathematical methods for system modeling and control.

Ion Victor Gosea
Dimitrios S. Karachalios
Charles Poussot-Vassal
Tanja Vidaković-Koch
Antonio Sorrentino

Their work is recognized through professional distinctions, including being named an IEEE Fellow in 1992 for contributions to the theory of linear system realization.

Best Publications

Approximation of Large-Scale Dynamical Systems

Athanasios C. Antoulas

4099
Citations
A survey of model reduction by balanced truncation and some new results

Serkan Gugercin;Athanasios C. Antoulas

1003
Citations
A Survey of Model Reduction Methods for Large-Scale Systems

A.C. Antoulas;D.C. Sorensen;S. Gugercin

911
Citations
$\mathcal{H}_2$ Model Reduction for Large-Scale Linear Dynamical Systems

S. Gugercin;A. C. Antoulas;C. Beattie

890
Citations
A framework for the solution of the generalized realization problem

A.J. Mayo;A.C. Antoulas

484
Citations
Approximation of large-scale dynamical systems: an overview

Athanasios C. Antoulas;Dan C. Sorensen

450
Citations
The Sylvester equation and approximate balanced reduction

D.C. Sorensen;A.C. Antoulas

279
Citations
On the Scalar Rational Interpolation Problem

A. C. Antoulas;B. D. Q. Anderson

279
Citations
On the decay rate of Hankel singular values and related issues

Athanasios C. Antoulas;Danny C. Sorensen;Y. Zhou

264
Citations
Interpolatory Model Reduction of Large-Scale Dynamical Systems

Athanasios C. Antoulas;Christopher A. Beattie;Serkan Gugercin

263
Citations
A modified low-rank Smith method for large-scale Lyapunov equations ∗

Serkan Gugercin;Danny C. Sorensen;Athanasios C. Antoulas

260
Citations
Interpolatory Methods for Model Reduction

A. C. Antoulas;C. A. Beattie;S. Güğercin

229
Citations
A New Approach to Modeling Multiport Systems From Frequency-Domain Data

Sanda Lefteriu;Athanasios C. Antoulas

206
Citations
On the solution of the minimal rational interpolation problem

A.C. Antoulas;J.A. Ball;J. Kang;J.C. Willems

205
Citations
An overview of approximation methods for large-scale dynamical systems

Athanasios C. Antoulas

192
Citations
A new result on passivity preserving model reduction

Athanasios C. Antoulas

146
Citations
Data-Driven Parametrized Model Reduction in the Loewner Framework

Antonio Cosmin Ionita;Athanasios C. Antoulas

142
Citations
A behavioral approach to linear exact modeling

A.C. Antoulas;J.C. Willems

140
Citations
On recursiveness and related topics in linear systems

A. Antoulas

139
Citations
Mathematical System Theory

Athanasios C. Antoulas

100
Citations
Approximation of Large-Scale Dynamical Systems: An Overview

A.C. Antoulas

40
Citations

Frequent Co-Authors

Serkan Gugercin Virginia Tech

Danny C. Sorensen Rice University

Brian D. O. Anderson Australian National University

Peter Benner Max Planck Institute for Dynamics of Complex Technical Systems

Jan C. Willems KU Leuven

Eduardo D. Sontag Northeastern University

Pramod P. Khargonekar University of California, Irvine

Tryphon T. Georgiou University of California, Irvine

Matthias Heinkenschloss Rice University

Joseph A. Ball Virginia Tech

External Links

Personal website of Athanasios C. Antoulas Google Scholar page

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