Title | ||
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On the non-existence of linear perfect Lee codes: The Zhang-Ge condition and a new polynomial criterion. |
Abstract | ||
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The Golomb–Welch conjecture (1968) states that there are no e-perfect Lee codes in Zn for n≥3 and e≥2. This conjecture remains open even for linear codes. A recent result of Zhang and Ge establishes the non-existence of linear e-perfect Lee codes in Zn for infinitely many dimensions n, for e=3 and 4. In this paper we extend this result in two ways. First, using the non-existence criterion of Zhang and Ge together with a generalized version of Lucas’ theorem we extend the above result for almost all e (i.e. a subset of positive integers with density 1). Namely, if e contains a digit 1 in its base-3 representation which is not in the unit place (e.g. e=3,4) there are no linear e-perfect Lee codes in Zn for infinitely many dimensions n. Next, based on a family of polynomials (the Q-polynomials), we present a new criterion for the non-existence of certain lattice tilings. This criterion depends on a prime p and a tile B. For p=3 and B being a Lee ball we recover the criterion of Zhang and Ge. |
Year | DOI | Venue |
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2018 | 10.1016/j.ejc.2019.103022 | European Journal of Combinatorics |
Field | DocType | Volume |
Integer,Prime (order theory),Discrete mathematics,Polynomial,Lattice (order),Conjecture,Zhàng,Mathematics | Journal | 83 |
ISSN | Citations | PageRank |
0195-6698 | 0 | 0.34 |
References | Authors | |
6 | 1 |
Name | Order | Citations | PageRank |
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Claudio Qureshi | 1 | 10 | 4.48 |