Abstract
We introduce the notion of degree of imperfection of a code in \(\mathbb {Z}^n\) with the \(\ell _p\) metric, to extend the so-called quasi-perfect codes. Through the establishment of bounds and computational approach, we determine all radii for which there are linear quasi-perfect codes for \(p = 2\) and \(n = 2, 3\). Numerical results concerning the codes with small degree of imperfection are also presented.
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