Browsing Mathematics (Faculty of) by Subject "most complex"
Now showing items 1-2 of 2
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Complexity of proper prefix-convex regular languages
(Elsevier, 2019-10-01)A language L over an alphabet Σ is prefix-convex if, for any words x,y,z ∈ Σ*, whenever x and xyz are in L, then so is xy. Prefix-convex languages include right-ideal, prefix-closed, and prefix-free languages, which were ... -
Most Complex Regular Ideal Languages
(Discrete Mathematics and Theoretical Computer Science, 2016-10-17)A right ideal (left ideal, two-sided ideal) is a non-empty language $L$ over an alphabet $\Sigma$ such that $L=L\Sigma^*$ ($L=\Sigma^*L$, $L=\Sigma^*L\Sigma^*$). Let $k=3$ for right ideals, 4 for left ideals and 5 for ...