On Rationalized H- and CO-H-Spaces. With an Appendix on Decomposable H- and CO-H-Spaces. H. Scheerer (1985) Manuscripta mathematica
On the suspension homomorphism S. Dragotti, G. Magro, L. Parlato (2002) Bollettino dell'Unione Matematica Italiana In this paper we investigate the conditions for the suspension homomorphism s : Θ r - 1 F S n - 1 , x 0 → Θ r F S n , x 0 is onto or an isomorphism.