On the Ordered List Subgraph Embedding Problems

Abstract. In the (parameterized) Ordered List Subgraph Embedding problem (p-OLSE) we are given two graphs G and H, each with a linear order defined on its vertices, a function L that associates with every vertex in G a list of vertices in H, and a parameter k. The question is to decide if we can embed (one-to-one) a subgraph S of G of cardinality k into H such that: (1) every vertex of S is mapped to a vertex from its associated list, (2) the linear orders inherited by S and its image under the embedding are respected, and (3) if there is an edge between two vertices in S then there is an edge between their images. If we require the subgraph S to be embedded as an induced subgraph, we obtain the Ordered List Induced Subgraph Embedding problem (pOLISE). The p-OLSE and p-OLISE problems model various problems in Bioinformatics related to structural comparison/alignment of proteins. We investigate the complexity of p-OLSE and p-OLISE with respect to the following structural parameters: th...

• Type: Journal
• Year: 2016
• Where: ALGORITHMICA
• Authors: Olawale Hassan, Iyad A. Kanj, Daniel Lokshtanov, Ljubomir Perkovic
• Keywords: ALGORITHMICA 2016, Algorithms