Covering a poset by interval orders
β Scribed by Douglas B West
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 121 KB
- Volume
- 66
- Category
- Article
- ISSN
- 0097-3165
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π SIMILAR VOLUMES
We study the hypergraph ~(P) whose vertices are the points of a finite poset and whose edges are the maximal intervals in P (i.e. sets of the form I = {v ~ P:p <~ v <<. q}, p minimal, q maximal). We mention resp. show that the problems of the determination of the independence number c~, the point co
In their seminal paper, Frank and JordΓ an show that a large class of optimization problems including certain directed edge augmentation ones fall into the class of covering supermodular functions over pairs of sets. They also give an algorithm for such problems, however, that relies on the ellipsoi