11 citations · 29 across the 13 of their papers we have counts for
4 papers · 1 filter
Bijections around Springer numbers
Shaoshi Chen, Yang Li, Zhicong Lin +1
Arnol'd proved in 1992 that Springer numbers enumerate the Snakes, which are type analogs of alternating permutations. Chen, Fan and Jia in 2011 introduced the labeled ballot p…
How to generate all possible rational Wilf-Zeilberger pairs?
Shaoshi Chen
A Wilf--Zeilberger pair in the discrete case satisfies the equation . We present a structural description of all possible ratio…
Power Series with Coefficients from a Finite Set
Jason P. Bell, Shaoshi Chen
We prove in this paper that a multivariate D-finite power series with coefficients from a finite set is rational. This generalizes a rationality theorem of van der Poorten and Shpa…
On the Summability of Bivariate Rational Functions
Shaoshi Chen, Michael F. Singer
We present criteria for deciding whether a bivariate rational function in two variables can be written as a sum of two (q-)differences of bivariate rational functions. Using these…