Semi-local simple connectedness of non-collapsing Ricci limit spaces

نویسندگان

چکیده

Let $X$ be a non-collapsing Ricci limit space and let $x\in X$. We show that for any $\epsilon>0$, there is $r>0$ such every loop in $B_t(x)$ contractible $B_{(1+\epsilon)t}(x)$, where $t\in(0,r]$. In particular, semi-locally simply connected.

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ژورنال

عنوان ژورنال: Journal of the European Mathematical Society

سال: 2022

ISSN: ['1435-9855', '1435-9863']

DOI: https://doi.org/10.4171/jems/1166