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arxiv: 1706.03240 · v1 · pith:VEOQ42UOnew · submitted 2017-06-10 · 🧮 math.AT · math.CO

Example of C-rigid polytopes which are not B-rigid

classification 🧮 math.AT math.CO
keywords b-rigidc-rigidcharacterizedcombinatorialemphpolytopesaidsimple
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A simple polytope $P$ is said to be \emph{B-rigid} if its combinatorial structure is characterized by its Tor-algebra, and is said to be \emph{C-rigid} if its combinatorial structure is characterized by the cohomology ring of a quasitoric manifold over $P$. It is known that a B-rigid simple polytope is C-rigid. In this paper, we, further, show that the B-rigidity is not equivalent to the C-rigidity.

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