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Theorem 5.1 ( ( n − 2 ) -Symmetric Limits) . [01YI]

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Theorem 5.1 ((n−2)(n-2)-Symmetric Limits).

Let (Mjn,gj,pj)(M^{n}_{j},g_{j},p_{j}) be a sequence of Riemannian manifolds satisfying |RicMjn|→0|{\rm Ric}_{M^{n}_{j}}|\to 0, Vol⁡(B1​(pj))>v>0{\rm Vol}(B_{1}(p_{j}))>{\rm v}>0 and such that

(Mjn,dj,pj)⟶dG​Hℝn−2×C⁡(Sβ1).\displaystyle(M_{j}^{n},d_{j},p_{j})\stackrel{{\scriptstyle d_{GH}}}{{\longrightarrow}}\mathds{R}^{n-2}\times C(S^{1}_{\beta})\,. (5.2)

Then β=2​π\beta=2\pi and ℝn−2×C⁡(Sβ1)=ℝn\mathds{R}^{n-2}\times C(S^{1}_{\beta})=\mathds{R}^{n}.

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