Subject: Symmetric precubical set From: Gaucher Philippe Date: Thu, 5 Jul 2007 14:02:28 +0200 Dear all, Has anyone encoutered something like that: The object could be called symmetric precubical set. Here is an example. Take a topological space X. And K(n)=Top([0,1]^n,X). 1) The face maps are the usual ones : d_i^alpha(f)(x_1,...x_{n-1})f(x_1,...,x_{i-1},alpha,x_i,...,x_{n-1}) 2) No degeneracy maps (PREcubical set) 3) AND the operations sigma(f)(x_1,...x_n)=f(x_{sigma^{-1}(1)},...,x_{sigma^{-1}(n)} for all bijections of {1,...,n}. Question : if yes, what is the name of this object ? Any reference ? Thanks in advance. pg.