**Combinatorial and Discrete Geometry: Sheet N**

Prepared by:

Joseph Malkevitch

Department of Mathematics and Computer Studies

York College (CUNY)

Jamaica, New York 11451

email: joeyc@cunyvm.cuny.edu

web page: http://www.york.cuny.edu/~malk

For each of the weighted graphs below find a

a. Boruvka

b. Prim (start at vertex 3)

c. Kruskal

minimum cost spanning tree. Number the edges of the tree in the order in which you add them to the tree.

G:

H:

I:

K: