Qidong He

activity

20202026

most citedHigh-fugacity expansion and crystallization in non-sliding hard-core lattice particle models without a tiling constraint

3 citations · 4 across the 10 of their papers we have counts for

collaborators

Showing math.COShow all

2 papers · 1 filter

math.CO2026

A new upper bound on the dimer constant of $Z^{3}$

Qidong He

We prove that the dimer constant of the cubic lattice is bounded above by $0.452130$ , improving the previous best upper bound of $0.457547$ obtained by Lundow (2001) using the tran…

math.CO2022

Counting conjugacy classes of elements of finite order in exceptional Lie groups

Tamar Friedmann, Qidong He

This paper continues the study of two numbers that are associated with Lie groups. The first number is $N (G, m)$ , the number of conjugacy classes of elements in $G$ whose order divi…

A new upper bound on the dimer constant of Z3

Counting conjugacy classes of elements of finite order in exceptional Lie groups

A new upper bound on the dimer constant of $Z^{3}$