2 papers
math.CO2010
The largest singletons of set partitions
Yidong Sun, Xiaojuan Wu
Recently, Deutsch and Elizalde studied the largest and the smallest fixed points of permutations. Motivated by their work, we consider the analogous problems in set partitions. Let…
math.CO2010
The largest singletons in weighted set partitions and its applications
Yidong Sun, Yanjie Xu
Recently, Deutsch and Elizalde studied the largest and the smallest fixed points of permutations. Motivated by their work, we consider the analogous problems in weighted set partit…