Journal article
ON THE MOBIUS FUNCTION OF HOM(P,Q)
TP SPEED
BULLETIN OF THE AUSTRALIAN MATHEMATICAL SOCIETY | AUSTRALIAN MATHEMATICS PUBL ASSOC INC | Published : 1984
Abstract
A formula is given for the Möbius function of the poset Hom(P, Q) of all order-preserving maps between two finite posets P and Q. Two applications of the formula are presented. © 1984, Australian Mathematical Society. All rights reserved.