%0 Journal Article %A Freed, Daniel S %A Hopkins, Michael J %T Reflection positivity and invertible topological phases %J Geometry & topology %D 2021 %P 1165-1330 %V 25 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.2140/gt.2021.25.1165/ %R 10.2140/gt.2021.25.1165 %F GT_2021_25_3_a1