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Results tagged with polyhedra
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user 32507
6
votes
Accepted
Are the polyhedral cones the only examples of cones that remains closed when they are added ...
The radial cone of $C$ is defined via
$$
\mathcal R_C(x) := \bigcup_{\lambda > 0} \lambda ( C - x)$$
for all $x \in C$
and we can show
$$
\mathcal R_C(x) = C + \operatorname{span}(x),
$$
since $C$ is …
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