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math.CO2012★ 1 cited
Locally Restricted Compositions IV. Nearly Free Large Parts and Gap-Freeness
Edward A. Bender, E. Rodney Canfield, Zhicheng Gao
We define the notion of asymptotically free for locally restricted compositions, which means roughly that large parts can often be replaced by any larger parts. Two well-known exam…
math.CO2005
Simultaneous Diagonal Flips in Plane Triangulations
Prosenjit Bose, Jurek Czyzowicz, Zhicheng Gao +2
Simultaneous diagonal flips in plane triangulations are investigated. It is proved that every -vertex triangulation with at least six vertices has a simultaneous flip into a 4-c…