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2 votes
1 answer
349 views

Several convex polytopes in a simplex; fix an extreme point for each; how many can be supported by a function monotonic on all line segments?

Sorry the title may be unclear. I do not know how to give it a good title..... Let $\Delta$ be a probability simplex of $R^N$; i.e. set of all points $x$ such that $x\geq0$ and $\sum_{k=1}^Nx^k\leq1$....
5 votes
2 answers
294 views

Convex caps with prescribed edges

Let $P$ be a convex polygon in the plane $R^2=R^2\times \{0\}$, and $E$ be the edge graph of some subdivision of $P$ into convex polygons, which is $3$-connected. Does there exist a convex polyhedral ...