The projective norm graphs are central objects to extremal combinatorics. They appear in a variety of contexts, most importantly they provide tight constructions for the Turán number of complete bipartite graphs \(K_{t,s}\) with \(s>(t-1)!\). In this note we deepen their understanding further by determining their automorphism group.

中文翻译：

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射影范数图的自同构群

射影范数图是极值组合学的核心对象。它们出现在各种上下文中，最重要的是，它们为具有\(s>(t-1)!\)的完全二部图\(K_{t,s}\)的 Turán 数提供了紧密构造。在这篇笔记中，我们通过确定他们的自同构群来进一步加深他们的理解。