Hybrid $d$-ary trees and their generalization
Bull. Korean Math. Soc. 2014 Vol. 51, No. 1, 229-235
https://doi.org/10.4134/BKMS.2014.51.1.229
Printed January 1, 2014
SeoungJi Hong and SeungKyung Park
Yonsei University, Yonsei University
Abstract : We enumerate black and white colored $d$-ary trees with no leftmost \mbox{\LeftBBEDGE}$\,\,$-edges, which is a generalization of hybrid binary trees. Then the multi-colored hybrid $d$-ary trees with the same condition is studied.
Keywords : enumeration, generating function, hybrid tree
MSC numbers : 05A15
Downloads: Full-text PDF  


Copyright © Korean Mathematical Society. All Rights Reserved.
The Korea Science Technology Center (Rm. 411), 22, Teheran-ro 7-gil, Gangnam-gu, Seoul 06130, Korea
Tel: 82-2-565-0361  | Fax: 82-2-565-0364  | E-mail: paper@kms.or.kr   | Powered by INFOrang Co., Ltd