Free and fragmenting filling length
The filling length of an edge-circuit \eta in the Cayley 2-complex of a finite presentation of a group is the least integer L such that there is a combinatorial null-homotopy of \eta down to a base point through loops of length at most L. We introduce similar notions in which the null-homotopy is no...
| Autori principali: | , |
|---|---|
| Natura: | Journal article |
| Lingua: | English |
| Pubblicazione: |
2005
|