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math.CO2022★ 2 cited
An improved lower bound for the planar Turán number of cycles
Yongxin Lan, Zi-Xia Song
The planar Turán number of a graph , denoted by , is the largest number of edges in a planar graph on vertices without containing as a subgraph.…
math.CO2022
Planar Turán numbers of cubic graphs and disjoint union of cycles
Yongxin Lan, Yongtang Shi, Zi-Xia Song
The planar Turán number of a graph , denoted , is the maximum number of edges in a planar graph on vertices without containing as a subgraph. Thi…