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math.CO2026
Spectral extremal problems on planar and outerplanar graphs without $C_{k,l}
Jiamin Li, Dan Li, Xilong Yin +1
Let and be the maximum spectral radius among all -vertex -free planar graphs and outerplanar graphs, respec…
math.CO2016★ 1 cited
A New Result on Packing Unit Squares into a Large Square
Shuang Wang, Tian Dong, Jiamin Li
In their 2009 note: \emph{Packing equal squares into a large square}, Chung and Graham proved that the uncovered area of a large square of side length is $O\left(x^{(3+\sqrt{2}…