= Joonkyung Lee
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<Joonkyung Lee> works on extremal <combinatorics>. With <David Conlon> and <Alexander Sidorenko>, he studied connections between the <Sidorenko conjecture> and extremal numbers.<Extremal numbers and Sidorenko’s conjecture by David Conlon and others>[Original byline and abstract]{ref}
The graph conjecture concerns lower bounds on homomorphism densities for <bipartite graphs>. The paper investigates hypergraph analogues, where counterexamples exist, and uses those failures to improve lower bounds for the number of edges in a forbidden-configuration-free <hypergraph>.<Extremal numbers and Sidorenko’s conjecture by David Conlon and others>[Introduction, equation 1 and abstract]{ref}
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