# Math Help - principal eigenvalue of a 4x4 reciprocal positive matrix

1. ## principal eigenvalue of a 4x4 reciprocal positive matrix

Hello,

How do I find the principal eigenvalue λmax of a 4x4 or 5x5 reciprocal positive matrix??

I have some explicit formulas for a 3x3 matrix, but I cannot find any such formula for 4x4 and 5x5 matrix.

Thank you in advance for your help.

Dragi

2. Originally Posted by peltek72
Hello,

How do I find the principal eigenvalue λmax of a 4x4 or 5x5 reciprocal positive matrix??

I have some explicit formulas for a 3x3 matrix, but I cannot find any such formula for 4x4 and 5x5 matrix.

Thank you in advance for your help.

Dragi
http://www.orsj.or.jp/~archive/pdf/e...l.41_3_404.pdf