In this paper, some properties of removable edge in 4-connected graphs are obtained.

给出了4连通图中可去边的一些性质。

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An optional Keyboard Dock gives the Razer Edge the laptop experience with a traditional keyboard and mouse, supporting a removable 40 Wh battery, so gamers can play their favorite keyboard and mouse reliant PC titles.

ENGADGET: Project Fiona becomes Razer Edge, starts at $999, sans controller