Yuan–Hsun Lo

collaborators

3 papers

math.CO2014

The sorting index on colored permutations and even-signed permutations

Sen-Peng Eu, Yuan-Hsun Lo, Tsai-Lien Wong

We define a new statistic $sor$ on the set of colored permutations $G_{r, n}$ and prove that it has the same distribution as the length function. For the set of re…

math.CO2014

Edge-colorings of $K_{m, n}$ which Forbid Multicolored Cycles

Hung-Lin Fu, Yuan-Hsun Lo, Ryo-Yu Pei

A subgraph in an edge-colored graph is multicolored if all its edges receive distinct colors. In this paper, we study the proper edge-colorings of the complete bipartite graph $K_{…

math.CO2014

Set-valued sorting index and joint equidistributions

Sen-Pen Eu, Yuan-Hsun Lo, Tsai-Lien Wong

Recently Petersen defined a new Mahonian index sor over the symmetric group $S_{n}$ and proved that $(inv, rlmin)$ and $(sor, cyc)$ have the sa…

The sorting index on colored permutations and even-signed permutations

Edge-colorings of Km,n​ which Forbid Multicolored Cycles

Set-valued sorting index and joint equidistributions

Edge-colorings of $K_{m, n}$ which Forbid Multicolored Cycles