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Electronic Colloquium on Computational Complexity

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REPORTS > KEYWORD > ALGEBRAIC CLOSURE:
Reports tagged with algebraic closure:
TR04-037 | 14th April 2004
Elmar Böhler, Christian Glaßer, Bernhard Schwarz, Klaus W. Wagner

Generation Problems

Given a fixed computable binary operation f, we study the complexity of the following generation problem: The input consists of strings a1,...,an,b. The question is whether b is in the closure of {a1,...,an} under operation f.

For several subclasses of operations we prove tight upper and lower bounds for the ... more >>>




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