Recurrences for Entries of Powers of Matrices
Stănică, Gabriela N.
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In this note, giving course to a challenge in a recent paper of Larcombe , we find the entries of any nth power of a 3 x 3 matrix, and as a byproduct, we recover Larcombe's result on 2 x 2 matrices. Further, we look at block matrices and show an invariance result for the powers of such matrices.
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