Goodrick's conjecture on collapsibility of star-shaped complexes

Let CC be a simplicial complex, and let C|C| denote its underlying space. The space C|C| is star-shaped if it is star-shaped in the relevant Euclidean space. Goodrick's conjecture. If C|C| is star-shaped, then CC is collapsible. This is one of several formulations of the longstanding open problem whether convex or star-shaped balls are collapsible; the source notes that the question has seen little progress beyond the three-dimensional case.

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Primary source

Karim Adiprasito and Bruno Benedetti, “Barycentric subdivisions of convex complexes are collapsible”, arXiv:1709.07930 (2017).

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