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Infinite matrices.

  1. Jul 25, 2012 #1
    If I had an infinite matrix [itex] \aleph_0 \times \aleph_0 [/itex] could I find the eigenvalues or the Determinant of this matrix. I think some of these matrices would have a finite Determinant or it could be zero. Because i could add 1/2+1/4+1/8..... but I would just need a matrix with the right entries. Just wondering if anyone has done this and how you would go about figuring it out.
  2. jcsd
  3. Jul 25, 2012 #2


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    Hey cragar.

    The topic that deals with this kind of thing is the Hilbert-Space theory that deals with operator algebras in infinite-dimensional spaces.

    If you want to look into this look into things like Hilbert-Space Theory, Banach Spaces, and operator algebras like C* algebras as well as functional analysis in the infinite-dimensional spaces.
  4. Jul 25, 2012 #3


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    Note that you will need to have some kind of "regularity conditions" on the "infinite matrices" in order that the infinite sums involved will converge.
  5. Aug 9, 2012 #4
    Can you recommend any sources related to these topics? Thanks.
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