dc.creator | Louder, L | |
dc.creator | Wilton, Henry John | |
dc.date.accessioned | 2016-04-05 | |
dc.date.accessioned | 2018-11-24T23:27:01Z | |
dc.date.available | 2017-02-08T09:33:33Z | |
dc.date.available | 2018-11-24T23:27:01Z | |
dc.identifier | https://www.repository.cam.ac.uk/handle/1810/262356 | |
dc.identifier.uri | http://repository.aust.edu.ng/xmlui/handle/123456789/3932 | |
dc.description.abstract | We prove Wise’s W-cycles conjecture: Consider a compact graph Γ′ immersing into another graph Γ. For any immersed cycle Λ : S¹ → Γ, we consider the map Λ′ from the circular components S of the pullback to Γ′. Unless Λ′ is reducible, the degree of the covering map S → S¹ is bounded above by minus the Euler characteristic of Γ′. As a corollary, any finitely generated subgroup of a one-relator group has finitely generated Schur multiplier. | |
dc.language | en | |
dc.publisher | Canadian Mathematical Society | |
dc.publisher | Canadian Mathematical Bulletin | |
dc.subject | free groups | |
dc.subject | one-relator groups | |
dc.subject | right-orderability | |
dc.title | Stackings and the W-cycles conjecture | |
dc.type | Article | |