| 21. | The polyhedral model handles a wider class of programs and transformations than the unimodular framework.
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| 22. | There are exactly 257 combinatorially distinct vertices ( or polyhedral graphs with eight nodes ).
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| 23. | Electron micrograph of Synechococcus elongatus PCC 7942 cell showing the carboxysomes as polyhedral dark structures.
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| 24. | The smallest possible number of vertices for a non-hamiltonian polyhedral graph is 11.
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| 25. | The hidden inner pentagons are no longer part of the polyhedral surface, and can disappear.
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| 26. | The markings are generally along leaf keels or margins, giving a sort of polyhedral appearance.
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| 27. | Uniform polyhedra with circumradii less than 1 can be make polyhedral pyramids with regular tetrahedral sides.
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| 28. | Every polyhedral cone can be described in two different ways : with inequalities or conic combinations.
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| 29. | Polyhedral cones play a central role in the representation theory of bounded polyhedron is a polytope.
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| 30. | Every topological surface is homeomorphic to a polyhedral surface such that all genus and homology groups.
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