San Francisco-based Box concluded its annual conference yesterday, following three days of upgrade announcements and significant releases. One of those releases — Skills — brought artificial ...

In this paper, we show that a graph G contains no 4-cycles if and only if ∥Ḡ∥ is a strong Z₂-deformation retract of the box complex ∥B(G)∥ of G, where Ḡ is the 1-dimensional free simplicial Z₂-complex ...