We discuss Hedetniemi's conjecture in the context of categories of relational structures under homomorphisms. In this language Hedetniemi's conjecture says that if there are no homomorphisms from the graphs G and H to the complete graph on n vertices then there is no homomorphism from G x H to the c
Rational L-S category and conjecture of Ganea
β Scribed by Barry Jessup
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 734 KB
- Volume
- 65
- Category
- Article
- ISSN
- 0022-4049
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It is a pleasure to thank the referec for his valuable suggestions which resulted in an improvement of the manuscript. The first author also thanks Professor E. L. Green for valuable discussions concerning the package GRB, on May 1994 at SFB 343, University Bielefeld; and Professor C. M. Ringel for
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