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Stijn Cambie, Recent progress on the Union-closed conjecture and related
Stijn Cambie, Recent progress on the Union-closed conjecture and related
We give a summary on the work of the last months related to Frankl's Union-Closed conjecture and its offsprings. The initial conjecture is stated as a theorem in extremal set theory; when a family F is union-closed (the union of sets of F is itself a set of $\mathcal F$), then $\mathcal F$ contains an …