Geodesic
On stretching the interval simplex-permutohedron
Journal of Algebraic Combinatorics, Tome 39 (2014) no. 1, pp. 99-125.

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A family of polytopes introduced by E.M. Feichtner, A. Postnikov, and B. Sturmfels, which were named nestohedra, consists in each dimension of an interval of polytopes starting with a simplex and ending with a permutohedron. This paper investigates a problem of changing and extending the boundaries of these intervals. An iterative application of Feichtner-Kozlov procedure of forming complexes of nested sets is a solution of this problem. By using a simple algebraic presentation of members of nested sets it is possible to avoid the problem of increasing the complexity of the structure of nested curly braces in elements of the produced simplicial complexes.
Classification : 52B11, 52C45
Keywords: building set, nested set, hypergraph, simple polytope, truncation, stellar subdivision, combinatorial blowup, simplex, associahedron, cyclohedron, permutohedron 
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Petrić, Zoran. On stretching the interval simplex-permutohedron. Journal of Algebraic Combinatorics, Tome 39 (2014) no. 1, pp. 99-125. http://geodesic.mathdoc.fr/item/JAC_2014__39_1_a5/