Many Turán exponents via subdivisions

نویسندگان

چکیده

Abstract Given a graph $H$ and positive integer $n$ , the Turán number $\mathrm{ex}(n,H)$ is maximum of edges in an -vertex that does not contain as subgraph. A real $r\in (1,2)$ called exponent if there exists bipartite such $\mathrm{ex}(n,H)=\Theta (n^r)$ . long-standing conjecture Erdős Simonovits states $1+\frac{p}{q}$ for all integers $p$ $q$ with $q\gt p$ In this paper, we show $q \gt p^{2}$ Our result also addresses Janzer [18].

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ژورنال

عنوان ژورنال: Combinatorics, Probability & Computing

سال: 2022

ISSN: ['0963-5483', '1469-2163']

DOI: https://doi.org/10.1017/s0963548322000177