... intersecting set partitions, we investi-gate minimally intersecting set partitions of type B. Our main result is a formula forthe number of m inimally intersecting r-tuples of Bn -partitions. ... thetype B Coxeter arrangements, see Bj¨orner and Wachs [3], Bj¨orner and Brenti [2] and Humphreys [6].A set partition of type Bnis a partition π of the set {±1, ±2, . . . , ±n} into blockssatisfying ... and Yp∈zp, yp,1, ¯yp,1, . . . , yp,kp, ¯yp,kpthe electronic journal of combinatorics 17 (2010), #R22 10Minimally Intersecting Set Partitions of Type BWillia m Y.C. Chen and...