| Autor: |
Gu, Yan, Hà, Huy Tài, Skelton, Joseph W. |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
IJAC 31 (2021) 865 - 881 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1142/S0218196721500405 |
| Popis: |
We show that attaching a whisker (or a pendant) at the vertices of a cycle cover of a graph results in a new graph with the following property: all symbolic powers of its cover ideal are Koszul or, equivalently, componentwise linear. This extends previous work where the whiskers were added to all vertices or to the vertices of a vertex cover of the graph. |
| Databáze: |
arXiv |
| Externí odkaz: |
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