The complexity of semilinear problems in succinct representation

  • Authors:
  • Peter Bürgisser;Felipe Cucker;Paulin Jacobé Naurois

  • Affiliations:
  • Department of Mathematics, University of Paderborn, Paderborn, Germany D-33095;Department of Mathematics, City University of Hong Kong, Kowloon, Hong Kong;LORIA, Villers-lès-Nancy Cedex, France 54602

  • Venue:
  • Computational Complexity
  • Year:
  • 2006

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Abstract

We prove completeness results for twenty-three problems in semilinear geometry. These results involve semilinear sets given by additive circuits as input data. If arbitrary real constants are allowed in the circuit, the completeness results are for the Blum---Shub---Smale additive model of computation. If, in contrast, the circuit is constant-free, then the completeness results are for the Turing model of computation. One such result, the PNP[log]-completeness of deciding Zariski irreducibility, exhibits for the first time a problem with a geometric nature complete in this class.