Symmetric disjunctive list-decoding codes

In this work, we consider symmetric disjunctive list-decoding (SLD) codes, which are a class of binary codes based on a symmetric disjunctive sum (SDS) of binary symbols. By definition, the SDS takes values from the ternary alphabet \(\{0, 1, *\}\), where the symbol \(*\) denotes “erasure”. Namely: SDS is equal to 0 (1) if all its binary symbols are equal to 0 (1), otherwise SDS is equal to \(*\). The main purpose of this work is to obtain bounds on the rate of these codes.