Graph quasivarieties
Introduced by C. R. Shallon in 1979, graph algebras establish a useful connection between graph theory and universal algebra. This makes it possible to investigate graph varieties and graph quasivarieties, i.e., classes of graphs described by identities or quasi-identities. In this paper, graph quas...
Elmentve itt :
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| Dokumentumtípus: | Cikk |
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2020
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| Sorozat: | Acta scientiarum mathematicarum
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| Kulcsszavak: | Matematika, Algebra |
| Tárgyszavak: | |
| doi: | 10.14232/actasm-019-528-9 |
| Online Access: | http://acta.bibl.u-szeged.hu/69361 |
| Tartalmi kivonat: | Introduced by C. R. Shallon in 1979, graph algebras establish a useful connection between graph theory and universal algebra. This makes it possible to investigate graph varieties and graph quasivarieties, i.e., classes of graphs described by identities or quasi-identities. In this paper, graph quasivarieties are characterized as classes of graphs closed under directed unions of isomorphic copies of finite strong pointed subproducts. |
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| Terjedelem/Fizikai jellemzők: | 31-50 |
| ISSN: | 2064-8316 |