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bio website kmf.fgg.uni-lj.si/mkramar/…
location Slovenia
age 41
visits member for 1 year, 11 months
seen Jul 9 at 8:06

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awarded  Good Question
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awarded  Notable Question
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comment Is the Invariant Subspace Problem interesting?
not yet... cafematematico.com/2013/02/05/statement-from-cowen-and-gallardo
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awarded  Scholar
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accepted real symmetric matrix has real eigenvalues - elementary proof
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awarded  Popular Question
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awarded  Nice Question
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awarded  Editor
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comment real symmetric matrix has real eigenvalues - elementary proof
@Tom, Gerald: I apologize for being unclear. I've now corrected my question (I haven't done that before since I thought editing already posted questions could also be confusing).
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revised real symmetric matrix has real eigenvalues - elementary proof
added 11 characters in body
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awarded  Supporter
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comment real symmetric matrix has real eigenvalues - elementary proof
To clarify the situation - if a real symmetric matrix has one real eigenvalue, all its eigenvalues are real (which can be proved by induction)!
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comment real symmetric matrix has real eigenvalues - elementary proof
Indeed the question was posed for pedagogical purposes, elementary meaning that a first-year engineering student would be able to follow it!
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awarded  Student
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asked real symmetric matrix has real eigenvalues - elementary proof