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A note on induced Turán numbers (2105.12503v1)
Published 26 May 2021 in math.CO
Abstract: Loh, Tait, Timmons and Zhou introduced the notion of induced Tur\'{a}n numbers, defining $\operatorname{ex}(n, {H, F\text{-ind}})$ to be the greatest number of edges in an $n$-vertex graph with no copy of $H$ and no induced copy of $F$. Their and subsequent work has focussed on $F$ being a complete bipartite graph. In this short note, we complement this focus by asymptotically determining the induced Tur\'{a}n number whenever $H$ is not bipartite and $F$ is not an independent set nor a complete bipartite graph.