- #1
pyroknife
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Homework Statement
For an arbitrary positive integer ##n##, give a ##2n## x ##2n## matrix ##A## without real eigenvalues.
Homework Equations
The Attempt at a Solution
First of all, I am having some trouble interpreting this problem. I do not know if it is generalized where I am supposed to find a ##2n## x ##2n## matrix A without real eigenvalues for ANY ##n##, or just for one specific ##n## value, which I can pick. I assume it is the former.
Since it is 2*n, we know that the number of rows/columns is even for any ##n##. If it was only ##n##, without it being multiplied it by 2, then the number of rows/columns could be odd, and thus there will always be at least one real eigenvalue.
Since there's an even # of rows/columns, it is possibly that matrix ##A## not have any real eigenvalues.
This is about as far as I got and I am having a very hard time figuring out how to generalize this problem for any arbitrary value of ##n##.