A Refinement of the Formula for k-ary Trees and the Gould-Vandermonde's Convolution. - Ricky X. F. Chen (Electron. J. Comb., 2008)

A simple framework on sorting permutations. - Ricky X. F. Chen; Christian M. Reidys (CoRR, 2015)

A Note on the Generating Function for the Stirling Numbers of the First Kind. - Ricky X. F. Chen (J. Integer Seq., 2015)

A Brief Introduction on Shannon's Information Theory. - Ricky X. F. Chen (CoRR, 2016)

Plane Permutations and Applications to a Result of Zagier-Stanley and Distances of Permutations. - Ricky X. F. Chen; Christian M. Reidys (SIAM J. Discret. Math., 2016)

A Combinatorial Identity Concerning Plane Colored Trees and its Applications. - Ricky X. F. Chen; Christian M. Reidys (J. Integer Seq., 2017)

Network tomography: a new structure spectrum for studying network dynamics. - Ricky X. F. Chen; Christian M. Reidys; Andrei C. Bura (CoRR, 2018)

A New Bijection Between RNA Secondary Structures and Plane Trees and its Consequences. - Ricky Xiaofeng Chen (Electron. J. Comb., 2019)

D-Chain Tomography of Networks: A New Structure Spectrum and an Application to the SIR Process. - Ricky X. F. Chen; Andrei C. Bura; Christian M. Reidys (SIAM J. Appl. Dyn. Syst., 2019)

Combinatorially refine a Zagier-Stanley result on products of permutations. - Ricky X. F. Chen (Discret. Math., 2020)

Relay a message as far as possible with local decisions in a network. - Ricky X. F. Chen (CoRR, 2021)

A versatile combinatorial approach of studying products of long cycles in symmetric groups. - Ricky X. F. Chen (Adv. Appl. Math., 2022)

New Equidistributions on Plane Trees and Decompositions of $132$-Avoiding Permutations. - Zi-Wei Bai; Ricky X. F. Chen (Electron. J. Comb., 2024)

Explicit formulas for a family of hypermaps beyond the one-face case. - Zi-Wei Bai; Ricky X. F. Chen (J. Comb. Theory, Ser. A, 2024)

Computing triple and double Hurwitz numbers involving a branch point with a two-part profile. - Zi-Wei Bai; Ricky X. F. Chen (Adv. Appl. Math., 2025)