We characterize those classes 𝓒 of separable Banach spaces for which there exists a separable Banach space Y not containing ℓ₁ and such that every space in the class 𝓒 is a quotient of Y.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm197-2-4, author = {Pandelis Dodos}, title = {Quotients of Banach spaces and surjectively universal spaces}, journal = {Studia Mathematica}, volume = {196}, year = {2010}, pages = {171-194}, zbl = {1201.46006}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm197-2-4} }
Pandelis Dodos. Quotients of Banach spaces and surjectively universal spaces. Studia Mathematica, Tome 196 (2010) pp. 171-194. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm197-2-4/