理学 图的同构 释 graph isomorphism 图的同构 假设和是两个图，如果存在两个一一射和，满足当且仅当，式中是的关联函数，是的关联函数，则称图和是同构的，记作。
＞组合数学、组合设计与图论＞图论＞释义 graph isomorphism 图同构 graph isomorphism 图同构
理论计算机科学 算法设计与分析 释文 graph isomorphism 图同构
- ureteral stricture
- ureteral tuberculosis
- ureteric orifice
- ureteric plexus
- ureterocele
- ureterolithotomy
- ureteropelvic junction obstruction
- ureteroscope lithotripsy
- ureterostenosis
- urethral artery
- urethral bulbar artery
- urethral bulbar vein
- urethral crest
- urethral fold
- urethral gland
- urethral groove
- urethral injuries
- urethral lacunae
- urethral obstruction
- urethral plate
- urethral ridge
- urethral syndrome
- urethritis
- urethrostomy
- UREX+流程