## Abstract Greene's Theorem states that the maximum cardinality of an optimal __k__βpath in a poset is equal to the minimum __k__βnorm of a __k__βoptimal coloring. This result was extended to all acyclic digraphs, and is conjectured to hold for general digraphs. We prove the result for general dig
On Greene-Kleitman's theorem for general digraphs
β Scribed by Ron Aharoni; Irith Ben-Arroyo Hartman
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- English
- Weight
- 706 KB
- Volume
- 120
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
Linial conjectured that Greene-Kleitman's theorem can be extended to general digraphs. We prove a stronger conjecture of Berge for digraphs having k-optimal path partitions consisting of 'long' paths. The same method yields known results for acyclic digraphs, and extensions of various theorems of Greene and Frank to acyclic digraphs.
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