Dear all, In the category CGTop of compactly generated Hausdorff topological spaces, the product provides a symmetric closed monoidal structure. Question: Is there another symmetric closed monoidal structure on CGTop ? Thanks in advance. pg. PS : Fact1 : On the category Top of topological spaces, there is exacly one symmetric closed monoidal structure. See Borceux vol 2 Proposition 7.1.6 and @article {MR87k:54012, AUTHOR = {Pedicchio, Maria Cristina and Solimini, Sergio}, TITLE = {On a ``good'' dense class of topological spaces}, JOURNAL = {J. Pure Appl. Algebra}, FJOURNAL = {Journal of Pure and Applied Algebra}, VOLUME = {42}, YEAR = {1986}, NUMBER = {3}, PAGES = {287--295}, ISSN = {0022-4049}, CODEN = {JPAAA2}, MRCLASS = {54B30 (18B30 18D10 18D15 54A10)}, MRNUMBER = {87k:54012}, MRREVIEWER = {D. Pumpl{\"u}n}, } 30-Jul-2002 18:56:10 -0300,2498;000000000000-00000024