Embeddings between partially commutative groups: two counterexamples
In this note we give two examples of partially commutative subgroups of partially commutative groups. Our examples are counterexamples to the Extension Graph Conjecture and to the Weakly Chordal Conjecture of Kim and Koberda, \cite{KK}. On the other hand we extend the class of partially commutative...
| Autors principals: | , , |
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| Format: | Journal article |
| Idioma: | English |
| Publicat: |
2013
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