Some Notes on Inplace Identities for Compositions
Received:December 16, 2015  Revised:April 15, 2016
Key Words: compositions   1-2 compositions   palindromic compositions   inplace   identity   combinatorial proof  
Fund Project:Supported by the National Natural Science Foundation of China (Grant No.11461020).
Author NameAffiliation
Yuhong GUO School of Mathematics and Statistics, Hexi University, Gansu 734000, P. R. China 
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      In this paper we give combinatorial proofs of two recurrence relations for the special class of objects known as inplace compositions. We also obtain new identities for the numbers of inplace 1-2 compositions and palindromic compositions.
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