A finite set of functions with an EXPTIME-complete composition problem

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A finite set of functions with an EXPTIME-complete composition problem

We exhibit a finite family of functions over a finite set (i.e. a finite algebra) such that the problem whether a given function can be obtained as a composition of the members of this family (i.e. is a member of the clone generated by the algebra) is EXPTIME-complete.

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ژورنال

عنوان ژورنال: Theoretical Computer Science

سال: 2008

ISSN: 0304-3975

DOI: 10.1016/j.tcs.2008.06.057