4.2.3 Clemens polytopes and their contractions [03U6]
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4.2.3 Clemens polytopes and their contractions
For any smooth projective variety of dimension , and and a snc model of it (see Appendix A) we have a canonical projection to the corresponding Clemens polytope
All interior points of -dimensional simplices of are -smooth, although there might be other smooth points too. More generally, one can compose projection with a continuous surjection where is a finite CW complex and map is a cell map for some cell subdivision of . We assume that fibers of the composition are connected. This seems to be the most general case of maps from projective varieties over complete local fields to CW complexes relevant for our purposes.