3 papers
math.CO2022
The list-coloring function of signed graphs
Sumin Huang, Jianguo Qian, Wei Wang
It is known that, for any -list assignment of a graph , the number of -list colorings of is at least the number of the proper -colorings of when $k>(m-1)/\l…
math.CO2021
The maximum number of stars in a graph without linear forest
Sumin Huang, Jianguo Qian
For two graphs and , the generalized Turán number, denoted by , is the maximum number of copies of in an -free graph of order . A linear forest is t…
math.CO2019
On the resistance distance and Kirchhoff index of a linear hexagonal (cylinder) chain
Sumin Huang, Shuchao Li
The resistance between two nodes in some resistor networks has been studied extensively by mathematicians and physicists. Let be a linear hexagonal chain with \, 6-cycles.…