35 citations · 156 across the 42 of their papers we have counts for
Showing 2012 · math.COShow all
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math.CO2012
3-Factor-criticality of vertex-transitive graphs
Heping Zhang, Wuyang Sun
A graph of order is -factor-critical, where is an integer of the same parity as , if the removal of any set of vertices results in a graph with a perfect matching…
math.CO2012
2-Resonant fullerenes
Rui Yang, Heping Zhang
A fullerene graph is a planar cubic graph with exactly 12 pentagonal faces and other hexagonal faces. A set of disjoint hexagons of is called a resonant patte…
math.CO2012★ 15 cited
A relation between Clar covering polynomial and cube polynomial
Heping Zhang, Wai-Chee Shiu, Pak-Kiu Sun
The Clar covering polynomial (also called Zhang-Zhang polynomial in some chemical literature) of a hexagonal system is a counting polynomial for some types of resonant structures c…