Title
On the complexity of finding paths in a two-dimensional domain I: Shortest paths
Abstract
The computational complexity of finding a shortest path in a two-dimensional domain is studied in the Turing machine-based computational model and in the discrete complexity theory. This problem is studied with respect to two formulations of polynomial-time computable two-dimensional domains: (A) domains with polynomial-time computable boundaries, and (B) polynomial-time recognizable domains with polynomial-time computable distance functions. It is proved that the shortest path problem has the polynomial-space upper bound for domains of both type (A) and type (B); and it has a polynomial-space lower bound for the domains of type (B), and has a #P lower bound for the domains of type (A). (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Year
DOI
Venue
2004
10.1002/malq.200310120
MATHEMATICAL LOGIC QUARTERLY
Keywords
Field
DocType
shortest path,computational complexity,polynomial time,polynmial space
Discrete mathematics,Combinatorics,Shortest path problem,Upper and lower bounds,Turing machine,Time complexity,Mathematics,Computational complexity theory
Journal
Volume
Issue
ISSN
50
6
0942-5616
Citations 
PageRank 
References 
8
0.64
0
Authors
2
Name
Order
Citations
PageRank
Arthur W. Chou1416.26
Ker-I Ko219628.54