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math.CO2023
The maximum Wiener index of a uniform hypergraph
Stijn Cambie, Ervin Győri, Nika Salia +2
The Wiener index of a (hyper)graph is calculated by summing up the distances between all pairs of vertices. We determine the maximum possible Wiener index of a connected -vertex…
math.CO2023
On the rainbow planar Turán number of paths
Ervin Győri, Ryan R. Martin, Addisu Paulos +2
An edge-colored graph is said to contain a rainbow- if it contains as a subgraph and every edge of is a distinct color. The problem of maximizing edges among -vertex…