Subject: Question on functorial H-spaces for Alg. Top. discussion list. From: "Guillermo Cortiņas" Date: Thu, 8 Feb 2007 19:32:51 +0100 Question: is it true that a functorial, $0$-connected, homotopy associative $H$-space with $H$-unit is naturally weakly equivalent to a functorial $H$-group? To formulate the question precisely: Let I be a small category; write $C$ for the category of functors from I to pointed simplicial sets. An $H$-associative $H$-unital funtorial $H$-space is an object $H$ of $C$ with an operation $+:H\times H\to H$ wich is associative up to natural homotopy and is such that $*$ is an identity up to natural homotopy. If in addition there is a natural map $H\to H$ which is naturally a homotopy inverse for the operation $+$, we call $H$ a functorial $H$-group. Assuming $H_i$ is $0$-connected for all $i\in I$, does it follow that there exists a functorial $H$-group $H'$ and a string of weak equivalences of $H$-objects connecting $H$ with $H'$ each of which preserves the operation up to natural homotopy? Guillermo Cortiņas. gcorti@agt.uva.es