Skip to main content
Article thumbnail
Location of Repository

Multi-Directional Width-Bounded Geometric Separator and Protein Folding

By Bin Fu, Sorinel A. Oprisan and Lizhe Xu


We introduce the concept of multi-directional width-bounded geometric separators and obtain an improved separator for grid graphs. This yields an improved exact algorithm for the protein folding problem in the HP-model. For a grid graph G with n grid points P, there exists a separator A ⊆ P such that A has at most 1.02074 √ n points, and G −A has two disconnected subgraphs each with at most 2 n nodes. This improves the previous 3 upper bound of 1.129 √ n 10. We also derive a 0.7555 √ n lower bound for such a separator in grid graphs

Topics: Geometric Separator, Grid Graph, Protein Folding
Year: 2007
OAI identifier: oai:CiteSeerX.psu:
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.