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  • Author or Editor: G. Abrams x
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Let R denote the purely infinite simple unital Leavitt path algebra L(E). We completely determine the pairs of positive integers (c, d) for which there is an isomorphism of matrix rings M c (R) ≌ M d (R), in terms of the order of [1 R ] in the Grothendieck group K 0(R).

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