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- W2024491681 abstract "A data structure called a PQ -tree is introduced. PQ -trees can be used to represent the permutations of a set U in which various subsets of U occur consecutively. Efficient algorithms are presented for manipulating PQ -trees. Algorithms using PQ -trees are then given which test for the consecutive ones property in matrices and for graph planarity. The consecutive ones test is extended to a test for interval graphs using a recently discovered fast recognition algorithm for chordal graphs. All of these algorithms require a number of steps linear in the size of their input." @default.
- W2024491681 created "2016-06-24" @default.
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- W2024491681 date "1976-12-01" @default.
- W2024491681 modified "2023-10-01" @default.
- W2024491681 title "Testing for the consecutive ones property, interval graphs, and graph planarity using PQ-tree algorithms" @default.
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- W2024491681 doi "https://doi.org/10.1016/s0022-0000(76)80045-1" @default.
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