2 papers
math.DS2025
Avoiding spectral pollution for transfer operators using residuals
April Herwig, Matthew J. Colbrook, Oliver Junge +2
Koopman operator theory enables linear analysis of nonlinear dynamical systems by lifting their evolution to infinite-dimensional function spaces. However, finite-dimensional appro…
cs.SI2024
Multi-set spectral clustering of time-evolving networks using the supra-Laplacian
Gary Froyland, Manu Kalia, Péter Koltai
Complex time-varying networks are prominent models for a wide variety of spatiotemporal phenomena. The functioning of networks depends crucially on their connectivity, yet reliable…