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在一个连通图 G 中,任一支路集如果满足下列两个条件:( 1 )移去该集的所有支路,能使图 G 分成两个独立部分;( 2 )在移去该集的支路时,只留下其中任一支,图 G 仍然是连通的。

2. 2. 1. 1. 1 , 4 , 6 ,. 3. 3. 5. 5. 4. 4. 6. 6. 图 G 的割集. 图 G. 割集. 在一个连通图 G 中,任一支路集如果满足下列两个条件:( 1 )移去该集的所有支路,能使图 G 分成两个独立部分;( 2 )在移去该集的支路时,只留下其中任一支,图 G 仍然是连通的。. 如:. 2. 1. 3. 5. 1 , 3 , 5 , 6 ,. 4. 6. 图 G 的割集. 如由支路. 3 , 4 , 5. 1 , 4 , 6. 2 , 5 , 6. 构成基本割集组. 2. 1. 2.

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在一个连通图 G 中,任一支路集如果满足下列两个条件:( 1 )移去该集的所有支路,能使图 G 分成两个独立部分;( 2 )在移去该集的支路时,只留下其中任一支,图 G 仍然是连通的。

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  1. 2 2 1 1 1,4,6, 3 3 5 5 4 4 6 6 图G的割集 图G 割集 在一个连通图G中,任一支路集如果满足下列两个条件:(1)移去该集的所有支路,能使图G分成两个独立部分;(2)在移去该集的支路时,只留下其中任一支,图G仍然是连通的。 如:

  2. 2 1 3 5 1,3,5,6, 4 6 图G的割集

  3. 如由支路 3,4,5 1,4,6 2,5,6 构成基本割集组 2 1 2 1 3 5 3 4 5 4 2 1 6 6 3 图G 图G的基本割集组 图G的树 基本割集 由数的一条树支和若干连支构成的割集。 基本割集数=树支数

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