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eess.SY2026
Spectral Koopman-Hopf Formula for Reachability with Adversary
Sarang Sutavani, Umesh Vaidya
This paper develops a spectral Koopman-Hopf framework for adversarial reachability analysis of nonlinear systems. By lifting the nonlinear drift dynamics into Koopman eigenfunction…
eess.SY2026
A Data-Driven Koopman-Behavioral Distance for Nonlinear Dynamical Systems
Sarang Sutavani, Umesh Vaidya
Comparing nonlinear dynamical systems directly from trajectory data remains challenging because finite-horizon trajectory representations are generally coordinate dependent. Motiva…