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Math Help - help with Tensors

  1. #1
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    Feb 2011
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    help with Tensors

    suppose sigma = [[1/2, -sqrt(3)/2, sqrt(3/2)] [-sqrt(3)/2, 3/2, 1/2] [sqrt(3)/2, 1/2, 0]] is a symmetric second order tensor with matrix given referring to the unprimed coordinate system. Find sigma' the matrix referring to the prime coordinate system.

    In the previous problem we found a matrix A when multipled by a 1x3 matrix in the unprimed coordinate system you would get a 1x3 matrix in the prime coordinate system.

    This is where I am confused.

    Does sigma' = A (tensor product) sigma? meaning I would have a 9x9 matrix.

    or is sigma' =A times sigma? leaving me with a 3x3 matrix?

    (A was a 3x3 matrix)

    ___________________________________________

    Figured out it was the second option and not a tensor product.
    Last edited by gamerman315; March 22nd 2011 at 09:25 PM. Reason: SOLVED
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