ScalingStacks

Theorem 1.3 . [01XG]

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Theorem 1.3.

There exists C=C⁡(n,v,q)C=C(n,{\rm v},q) such that if MnM^{n} satisfies |RicMn|≤n−1|{\rm Ric}_{M^{n}}|\leq n-1 and Vol⁡(B1​(p))>v>0{\rm Vol}(B_{1}(p))>{\rm v}>0. then for each q<2q<2,

⨏B1​(p)|Rm|q≤C.\displaystyle\fint_{B_{1}(p)}|{\rm Rm}|^{q}\leq C\,. (1.6)

If in addition, MnM^{n} is assumed to be Einstein, then for every q<2q<2 we have that

Vol⁡(Tr​({x∈B1​(p):rx≤r}))≤C​r2​q\displaystyle{\rm Vol}(T_{r}(\{x\in B_{1}(p):r_{x}\leq r\}))\leq C\,r^{2q} (1.7)

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