basically I am wondering about how to determine, given a square nxn matrix non symmetric and non-positive, how to understand how many positive eigenvalues it has without calculating them.

  • $\begingroup$ Non symmetrical matrices have eigenvalues in the complex plane. Are you talking about the real part? $\endgroup$ – Laray Apr 6 '18 at 8:42
  • $\begingroup$ I would like to understand something more so yes. $\endgroup$ – iacopo Apr 6 '18 at 9:08

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