Data-driven dynamical system
  1. Hangjun Cho, Fabio V.G. Amaral, Andrei A. Klishin, Cassio M. Oishi and Steven L. Brunton, From STLS to Projection-based Dictionary Selection in Sparse Regression for System Identification, arXiv:2512.14404.
  2. Zachary G. Nicolaou, Hangjun Cho, Yuanzhao Zhang, J. Nathan Kutz and Steven L. Brunton, Signature of glassy dynamics in dynamic modes decompositions, to appear in Phys. Rev. E (2026).  arXiv journal link
Physics-constrained and hybrid modeling frameworks
  1. Akshay Kudva, Hangjun Cho, Parth Shah, Dongheon Lee and Joseph Sang-Il Kwon, Hybrid Modeling with Attribution-Guided Symbolic Enhancements of Known Physics: Applications to Complex Biological and Engineering Systems, to appear in Chem. Eng. Sci. (2026). 
  2. Hangjun Cho, Akshay Kudva, Parth Shah, Dongheon Lee and Joseph Sang-Il Kwon, Dictionary-based Weak-form Training for Noise-Robust Series Hybrid Models with Multiplicative Unknowns , AIChE J. (2026).  journal link
Mathematical analysis of collective behavior
  1. Hangjun Cho, Jiu-Gang Dong, Seung-Yeal Ha and Seung-Yeon Ryoo, Quantitative relaxation dynamics from generic initial configurations in the inertial Kuramoto model, arXiv:2503.00720.
  2. Hangjun Cho, Jiu-Gang Dong, Seung-Yeal Ha and Seung-Yeon Ryoo, Inertia perturbation theory for the inertial Kuramoto model , to appear in SIAM J. Math. Anal. (2026).  arXiv
  3. Hangjun Cho, Jiu-Gang Dong and Seung-Yeal Ha, Alexseev-Gröbner Formula and Asymptotic Phase-Locking of Kuramoto Ensembles With Inertia and Frustration, Stud. Appl. Math. 156(1), (2026).  journal link
  4. Hangjun Cho, Chan Ho Min, Seung-Yeal Ha and Myeongju Kang, Uniform-in-time asymptotic limits of generalized Kuramoto models, J. Differ. Equ. 439 (2025).  arXiv  journal link
  5. Hangjun Cho, Seung-Yeal Ha and Myeongju Kang, Emergent behaviors of a Kuramoto ensemble under fading memory, J. Nonlinear Sci. 35(9) (2025).  journal link
  6. Hangjun Cho, Jiu-Gang Dong and Seung-Yeal Ha, Remark on the complete synchronization for the Kuramoto model with adaptive couplings, Commun. Math. Sci. 22(7), 2041--2057 (2024).  journal link
  7. Hangjun Cho, Seung-Yeal Ha, Dohyun Kim and Se Eun Noh, Local synchrony of Kuramoto oscillators on the cartesian product of two unit circles, Commun. Math. Sci. 22(8), 2089--2129 (2024).  journal link
  8. Hangjun Cho, Seung-Yeal Ha, Dohyun Kim and Se Eun Noh, On the asymptotic persistency of a bi-cluster flocking in a Cucker-Smale ensemble, Commun. Pur. Appl. Anal. 23(5), 645--673 (2024).  journal link
  9. Hangjun Cho, Seung-Yeal Ha and Dohyun Kim, Emergent behaviors of two attractively coupled swarm sphere models with frustration, Discrete Contin. Dyn. Syst.-Ser. B. 28(9) 4864--4897, (2023).  journal link
  10. Hangjun Cho, Jiu-Gang Dong and Seung-Yeal Ha, Interplay of inertia and adaptive couplings in the emergent dynamics of Kuramoto ensemble, J. Differ. Equ. 360, 523--571 (2023).  journal link
  11. Hangjun Cho, Jiu-Gang Dong and Seung-Yeal Ha, Cardinality of collisions in the asymptotic phase-locking for the Kuramoto model with inertia, SIAM J. Appl. Dyn. Syst. 22(2), 1472--1501 (2023).  journal link
  12. Hangjun Cho, Seung-Yeal Ha and Myeongju Kang, Continuum limit of Lohe model and its emergent dynamics, Math. Methods Appl. Sci. 46(8), 9783--9818 (2023).  journal link
  13. Hangjun Cho, Linglong Du and Seung-Yeal Ha, Emergence of a periodically rotating one-point cluster in a thermodynamic Cucker-Smale ensemble, Quart. Appl. Math. 80, 1--22 (2022).  arXiv  journal link
  14. Hangjun Cho, Jiu-Gang Dong and Seung-Yeal Ha, Emergent behaviors of a thermodynamic Cucker-Smale flock with a time-delay on a general digraph, Math. Methods Appl. Sci. 45, 164--196 (2022).  journal link