1 citations · 1 across the 3 of their papers we have counts for
3 papers
math.CO2013★ 1 cited
Another simple proof of an identity conjectured by Lacasse
Yidong Sun
In this note, using the derangement polynomials and their umbral representation, we give another simple proof of an identity conjectured by Lacasse in the study of the PAC-Bayesian…
math.CO2008
A simple bijection between binary trees and colored ternary trees
Yidong Sun
In this short note, we first present a simple bijection between binary trees and colored ternary trees and then derive a new identity related to generalized Catalan numbers.
cs.DM2004
Another Proof of an Extension of a Curious Identity
Yidong Sun
Based on Jensen formulae and the second kind of Chebyshev polynomials, another proof is presented for an extension of a curious binomial identity due to Z. W. Sun and K. J. Wu.