Barker, L.2015-07-282015-07-281999-02-150021-8693http://hdl.handle.net/11693/10974Given ap-blockbof a finite groupG, we show that theG-poset of Brauer pairs strictly containing (1,b) has contractibleG-orbit space. A similar result is proved for certainG-posets ofp-subgroups. Both results generalise P. Symonds' verification of a conjecture of P. Webb. © 1999 Academic Press.EnglishDouble simplicial complexOrbit spacePoset of Brauer pairsOn contractibility of th orbit space of a G-poset of Brauer pairsArticle10.1006/jabr.1998.76441090-266X