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• CommentRowNumber1.
• CommentAuthorUrs
• CommentTimeAug 25th 2018

added a word on spherical cones (here)

• CommentRowNumber2.
• CommentAuthorUrs
• CommentTimeOct 14th 2020

The metric cone over complex projective 3-space carries the structure of a G2-manifold whose Riemannian metric is invariant under the canonical Sp(2) action by left-matrix multiplication on homomogeneous coordinates in $\mathbb{H}^2 \simeq_{\mathbb{R}} \mathbb{C}^4 \to \mathbb{C}P^3$ (Byant-Salamon 89, see also [Acharya-Bryant-Salamon 20](metric+cone+over+complex+projective 3-space#AcharyaBryantSalamon20)).

• CommentRowNumber3.
• CommentAuthorUrs
• CommentTimeJan 25th 2021

• Rong-Xin Miao, Codimension-$n$ Holography for the Cones (arXiv:2101.10031)
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