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Green’s Lemma and Green’s Theorem for Γ-semigroups

✍ Scribed by R. Chinram; P. Siammai


Book ID
111473292
Publisher
SP MAIK Nauka/Interperiodica
Year
2009
Tongue
English
Weight
509 KB
Volume
30
Category
Article
ISSN
1995-0802

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On greene's theorem for digraphs
✍ Irith Ben-Arroyo Hartman; Fathi Saleh; Daniel Hershkowitz 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 328 KB

## Abstract Greene's Theorem states that the maximum cardinality of an optimal __k__‐path in a poset is equal to the minimum __k__‐norm of a __k__‐optimal coloring. This result was extended to all acyclic digraphs, and is conjectured to hold for general digraphs. We prove the result for general dig