Isabel Oitavem (FCT-UNL and CMAF-UL), NP with tier 0 pointers.

Schedule

  • Jan. 30, 2012, 16:00 - 16:30

Abstract

We give a characterization of NP using a recursion scheme with tier 0 pointers. This extends the Bellantoni-Cook characterization of Ptime and, simultaneously, it is a restriction of a recursion-theoretic characterization of Pspace.