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- W1590366935 abstract "Let G be an input graph with n vertices and m edges and let k be a fixed parameter. We provide a single exponential FPT algorithm with running time O(c^kn(n+m)), c= min {18,k} that turns graph G into an interval graph by deleting at most k vertices from G. This solves an open problem posed by D.Marx [19]. We also provide a single exponential FPT algorithm with running time O(c^kn(n+m)), c= min {17,k} that turns G into an interval graph by adding at most$k edges. The first FPT algorithm with run time O(k^{2k}n^3m) appeared in STOC 2007 [24]. Our algorithm is the the first single exponential FPT algorithm that improves the running time of the previous algorithm. The algorithms are based on a structural decomposition of G into smaller subgraphs when G is free from small interval graph obstructions. The decomposition allows us to manage the search tree more efficiently." @default.
- W1590366935 created "2016-06-24" @default.
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- W1590366935 date "2012-11-19" @default.
- W1590366935 modified "2023-09-27" @default.
- W1590366935 title "Single Exponential FPT Algorithm for Interval Vertex Deletion and Interval Completion Problem" @default.
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