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arXiv · 2401.02272

Functional Dimensionality of Koopman Eigenfunction Space

Ido Cohen·Eli Appleboim·Gershon Wolansky
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Abstract

This work presents the general form solution of Koopman Partial Differential Equation and shows that its functional dimensionality is finite. The dimensionality is as the dimensionality of the dynamics. Thus, the representation of nonlinear dynamics as a linear one with a finite set of Koopman eigenfunctions without error is possible. This formulation justifies the flowbox statement and provides a simple numerical method to find such representation.

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Ido Cohen, Eli Appleboim, Gershon Wolansky. 2024-01-04. Functional Dimensionality of Koopman Eigenfunction Space. https://arxiv.org/abs/2401.02272

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