# Auxiliary Functions as Koopman Observables: Data-Driven Analysis of Dynamical Systems via Polynomial Optimization

> Research article (Journal of Nonlinear Science, 2023) · cited 12× · AI/ML

**Wikidata**: [openalex:W4388098327](https://www.wikidata.org/wiki/openalex:W4388098327)  
**Source**: https://4ort.xyz/entity/auxiliary-functions-as-koopman-observables-data-driven-analysis-of-dynamical-systems-via-polynomial-optimization