) is every minimum bottleneck tree of g a minimum spanning tree of g? prove or give a counter example

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nallaico5895 nallaico5895

03-11-2017
Biology

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) is every minimum bottleneck tree of g a minimum spanning tree of g? prove or give a counter example

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shinmin shinmin · Answer 1 · 2017-11-14T03:35:11+01:00

The answer is false. To explain further, let G have vertices {v1, v2, v3, v4}, with ends between each pair of vertices, and with the mass on the edge from vi to vj equal to I + j. Then each tree has a bottle neck edge mass of as a minimum of 5, so the tree containing of a track through vertices v3, v2, v1,v4 is a least bottleneck tree. It is not a least spanning tree, though, subsequently its total mass is greater than that of the tree with edges from v1 to every single vertex.