Warning: file_put_contents(/www/wwwroot/zidian/oumou.cn/cache/1fa7e8b1b2de819fe20d333b9d75a945.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/oumou.cn/index.php on line 58 digraphs是什么意思，digraphs的翻译，digraphs音标、读音、用法和例句_欧米惠必应词典
Digraphs have a simple pictorial representation. 有向图有简单的图形表示。
Using matrix theory, we present a sharp upper bound on the spectral radius of digraphs and strongly connected diagraphs. 摘要利用矩阵理论，给出了简单有向图的谱半径可达上界和强连通有向图的谱半径上界。