Singular metrics with nonnegative scalar curvature and RCD

Xianzhe Dai, Changliang Wang, Lihe Wang +1

We show that a uniformly Euclidean metric with isolated singularity on $M^n=T^n\#M_0$, where $4\le n\le 7$ or $n\ge 4$, $M_0$ spin, and nonnegative scalar curvature on the s…