IJPAM: Volume 38, No. 3 (2007)

WEIGHTED INCREASING TREES AND
EXPONENTIAL GENERATING FUNCTIONS

Wen-Jin Woan
Department of Mathematics
Howard University
2103 Opal Ridge, Vista, CA 92081, USA
e-mail: wjwoan@sbcglobal.net


Abstract.We study the counting of various trees with labeled nodes and weighted edges and its exponential generating functions.

Received: April 18, 2007

AMS Subject Classification: 05A15

Key Words and Phrases: Riordan matrices, weighted increasing trees, Motzkin paths, exponential generating functions

Source: International Journal of Pure and Applied Mathematics
ISSN: 1311-8080
Year: 2007
Volume: 38
Issue: 3