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Jun 8, 2021 at 16:19 comment added Evgeny Shinder Are you sure about the ag.algebraic-geometry tag? Seems a bit far away!
Jun 8, 2021 at 9:48 comment added Pedro I am just learning about these topics, but if you're considering the setting where $L\cdot e^F=0$ where $L$ is a differential operator (Airy structure) in some Weyl algebra (with possibly infinitely many variables), then expanding that equation will inevitably lead to non-linear PDEs satisfied by the free energy $F$.
Jun 8, 2021 at 8:26 history asked IntegrableSystemsEnthusiast CC BY-SA 4.0