We establish new Bonferroni-type lower bounds for the probability of a union of finitely many events where the selection of intersections in the estimates is determined by the clique complex of a chordal graph.
"Lower bounds for the probability of a union via chordal graphs." Electron. Commun. Probab. 18 1 - 4, 2013. https://doi.org/10.1214/ECP.v18-2357