Skip to main content
4 events
when toggle format what by license comment
Apr 18, 2023 at 23:31 answer added spyros timeline score: 1
Jun 20, 2020 at 7:01 comment added Carlo Beenakker The functional $F(\phi)$ is an expansion in powers of $\phi$ and $\nabla \phi$, assuming the field $\phi$ is small and varies slowly; there is nothing fundamental about which terms to keep and which to discard, and in fact higher order functionals are also of interest.
Jun 20, 2020 at 6:13 answer added gmvh timeline score: 1
Jun 20, 2020 at 0:37 history asked JustWannaKnow CC BY-SA 4.0