Matthew J. Colbrook

Residual-Guided Dictionary Learning for Spectrally Accurate Koopman Approximation

George Coote, Matthew J. Colbrook

Koopman theory promises linear structure in nonlinear dynamics, but numerical Koopman spectra are easy to compute and hard to trust. A finite EDMD matrix always has eigenvalues; the problem is that many of them may have nothing to do with the infinite-dimensional operator. In thi…Read more