
05298096
j
2008d.00394
Petko\v sek, Marko
Pisanski, Toma\v z
Combinatorial interpretation of unsigned Stirling and Lah numbers.
Pi Mu Epsilon J. 12, No. 7, 417424 (2007).
2007
Worcester Polytechnic Institute (WPI), Mathematical Sciences, Worcester, MA
EN
K20
combinatorics
discrete mathematics
partitions
permutations
cycles
queues
recursion
polynomial identities
matrix representations
signed integers
proving
From the introduction: In this paper we examine three families of numbers with interesting combinatorial interpretations. We use three basic combinatorial proof techniques: the bijective proof, the rule of summation, and the method of distinguished element.