In 2013, Tommi Lehtinen and Alexander Okhotin proved that if X is a code, then it has infinite deciphering delay if and only if there exist + ∈ A z y x , , with * , , , X zy yz xy x ∈ and * , X z y ∉ . In this paper, we give a sufficient and necessary condition for codes with infinite deciphering delay. Then, we construct two kinds of three-element codes… (More)
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