A bijection between ordered trees and bicoloured ordered trees |
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| Authors: | Chunlin Liu Zhenghua Wang |
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| Institution: | 1. Department of Mathematics, National University of Defense Technology, Changsha, Hunan 410073, PR China;2. National Laboratory for Parallel and Distributed Processing, National University of Defense Technology, Changsha, Hunan 410073, PR China |
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| Abstract: | A bijection is introduced between ordered trees and bicoloured ordered trees, which maps leaves in an ordered tree to odd height vertices in the related tree. Consequently, a bijection between two sets of bridges specified with four parameters is derived. |
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