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Hao Chen
  • Member for 12 years, 11 months
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What can we learn from the newly discovered monohedral convex pentagonal tiling?
Anyway, I edited the description. Hope this makes things clear for those who don't see any mathematics in the question. I'm certainly not expecting answers like "we are ignorant" or "maths is beautiful".
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What can we learn from the newly discovered monohedral convex pentagonal tiling?
@kantelope : I don't see how this is not a mathematics question. It is about a new mathematical discovery, which contributes to the solution of a long standing mathematical problem. The question ask about the things we can learn from it, which could be new insights, new techniques, etc. For those who are interested in the problem, this should be the first thing: look at the results and get inspired. This makes sense even before the detail is published.
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Neighborly family of coins
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Polytope with indegree-increasing property.
@YunhyungCho I believe that "most" polytope can not be realized with such a plane. I don't have a characterization for those that can.
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Polytope with indegree-increasing property.
@YunhyungCho I just adjusted my answer to include extreme cases as simplex.
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Polytope with indegree-increasing property.
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Polytope with indegree-increasing property.
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Polytope with indegree-increasing property.
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Polytope with indegree-increasing property.
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Polytope with indegree-increasing property.
I would rephrase the question as follows: can we always find a convex polytope $P'$ such that $P'$ is combinatorially equivalent to $P$ and $P'$ is index increasing w.r.t. a given vector (after all, we can fix the vector wlog)
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Polytope with indegree-increasing property.
I guess that you know Kalai's algorithm for recognising graphs of simple polytopes.
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Polytope with indegree-increasing property.
He said "simple convex polytope". I think "deformation" means any combinatorial equivalent realization.
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Neighborly family of coins
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Neighborly family of coins
@TimothyChow, Thank you for this information. I remember that one. But here $\epsilon$ is supposed to be arbitrarily small. I think my second formulation is better.
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