A characterization of the Z<sup xmlns:m="http://www.w3.org/1998/Math/MathML" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">n</sup> ⊕Z(<i>δ</i>) lattice and definite nonunimodular inter

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