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user 72145
Questions about mathematical devices that read an input stream symbol by symbol and use a state transition map to produce an output stream, maybe using secondary storage.
2
votes
1
answer
313
views
Is there an algorithm that given a PDA $M$ decides if there exists a string in $L(M)$ with a...
I am looking for an algorithm that given a PDA $M$ decides whether there exists $w \in L(M)$ for which there exists a decomposition $w = uvxyz$ that satisfies $|vy| \geq 1$ and $uv^ixy^iz \in L(M)$ fo …
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