On the Complexity of Finding Paths in a Two-Dimensional Domain II: Piecewise Straight-Line Paths

  • Authors:
  • Arthur W. Chou;Ker-I Ko

  • Affiliations:
  • Department of Mathematics and Computer Science, Clark University, Worcester, MA 01610, USA;Department of Computer Science, State University of New York at Stony Brook, Stony Brook, NY 11794, USA

  • Venue:
  • Electronic Notes in Theoretical Computer Science (ENTCS)
  • Year:
  • 2005

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Abstract

The problem of finding a piecewise straight-line path, with a constant number of line segments, in a two-dimensional domain is studied in the Turing machine-based computational model and in the discrete complexity theory. It is proved that, for polynomial-time recognizable domains associated with polynomial-time computable distance functions, the complexity of this problem is equivalent to a discrete problem which is complete for @?"2^P, the second level of the polynomial-time hierarchy.