The planar Turán number of double star $S_{2,4}$

Xin Xu, Jiawei Shao

Planar Turán number $e{x}_{\mathcal{P}}(n,H)$ of $H$ is the maximum number of edges in an $n$-vertex planar graph which does not contain $H$ as a subgraph. Ghosh, Győri, Paulos and…