Browsing Department of Pure Mathematics and Mathematical Statistics (DPMMS) by Subject "free groups"

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  • Stackings and the W-cycles conjecture 

    Louder, L; Wilton, Henry John
    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 ...