We improve a result of Charpentier [Studia Math. 198 (2010)]. We prove that even on Fréchet spaces with a continuous norm, the existence of only one restrictively universal series implies the existence of a closed infinite-dimensional subspace of restrictively universal series.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm207-2-5, author = {Quentin Menet}, title = {Sous-espaces ferm\'es de s\'eries universelles sur un espace de Fr\'echet}, journal = {Studia Mathematica}, volume = {204}, year = {2011}, pages = {181-195}, zbl = {1256.30053}, language = {fra}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm207-2-5} }
Quentin Menet. Sous-espaces fermés de séries universelles sur un espace de Fréchet. Studia Mathematica, Tome 204 (2011) pp. 181-195. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm207-2-5/