[理工] 離散圖論
If G and G吧 are isomorphic, then G is self-complement. Show that if G=(V,E)
is self-complement and |V| = n, then n = 4k or 4k+1, k屬於正整數.
這題最後的證明結果是:
|E|=|E吧| & 2|E| = n(n-1)/2 --> |E| = n(n-1)/4
故 n = 4k or 4k+1 ,k屬於正整數
可是我還是想不通耶xD
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