Node Elimination by Kron Reduction
Consider an equation of the form
 |
(3.18) |
where A is an ( n X n ) real or complex valued matrix, x and b are vectors in either Rn or Cn . assume that the b vector has a zero element in the n th row such that (3.18) is given as
 |
(3.19) |
We can then eliminate the kth row and kth column to obtain a reduced ( n - 1) number of equations of the form
 |
(3.20) |
The elimination is performed using the following elementary operations
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(3.21) |
Do an example |
