0036
Social Network Analysis Spring 2012 » All SOC180 Problems » 0036

Q36. Consider the graph matrix below

A B C D E
A - 0 1 0 1
B 0 - 0 1 1
C 0 1 - 1 1
D 0 0 1 - 0
E 0 1 1 1 -
  1. We use $n$ for the number of vertices. What is $n$ here?
  2. What is $\sum _{ i=1 }^{ n }{ { A }_{ i4 } }$?
  3. What is $\sum _{ j=1 }^{ n }{ { A }_{ 3j } }$?
(1)
\begin{align} \sum _{ i=1 }^{ n }{ { A }_{ i4 } } \end{align}
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