2 papers
math.CO2026
The maximum number of cycles of a given length in a nonhamiltonian graph
Jifu Lin, Xiaolin Wang, Lihua You
In 2026, Li and Zhan characterized the nonhamiltonian graphs of order with the maximum number of paths of length , where and are integers satisfying $1\leq k\leq n-1…
math.CO2026
An improved upper bound on the oriented diameter of graphs with diameter
Jifu Lin, Xiaolin Wang, Lihua You
Let be the smallest value for which every bridgeless graph with diameter admits a strong orientation such that the diameter of $\overrightarrow{…