Loops in the fundamental group of $\mathrm{Symp}(\mathbb{C}{\mathbb{P}}^2\#5\overline{\mathbb{CP}}{}^2)$ which are not represented by circle actions

Sílvia Anjos, Miguel Barata, Martin Pinsonnault +1

We study generators of the fundamental group of the group of symplectomorphisms $\mathrm{Symp}({\mathbb{CP}}^2\#5\overline{\mathbb{CP}}{}^2,\omega )$ for some particul…