Skip to main content
4 events
when toggle format what by license comment
Sep 8, 2010 at 15:18 history edited rpotrie CC BY-SA 2.5
added 30 characters in body
Sep 8, 2010 at 15:16 comment added rpotrie I will edit that. I misunderstood the definition.
Sep 8, 2010 at 15:01 comment added Willie Wong I don't understand the claim that "open convex cone of $T_pM$ is defined by a subspace together with an angle". I do not require my cone to be a quadratic cone (in which case your argument is very nice). I want cone in the sense that if $v$ is in the set, then $rv$ is also in the set for any positive real $r$. In particular, associated to any open, convex shape in $\mathbb{S}^{d-1}$ is an open convex cone in $\mathbb{R}^d$. The open condition does, however, ensures that the cones cannot collapse.
Sep 8, 2010 at 14:33 history answered rpotrie CC BY-SA 2.5