In Rolewicz (2002) it was proved that every strongly α(·)-paraconvex function defined on an open convex set in a separable Asplund space is Fréchet differentiable on a residual set. In this paper it is shown that the assumption of separability is not essential.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm167-3-5, author = {S. Rolewicz}, title = {On differentiability of strongly $\alpha$($\cdot$)-paraconvex functions in non-separable Asplund spaces}, journal = {Studia Mathematica}, volume = {166}, year = {2005}, pages = {235-244}, zbl = {1074.46050}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm167-3-5} }
S. Rolewicz. On differentiability of strongly α(·)-paraconvex functions in non-separable Asplund spaces. Studia Mathematica, Tome 166 (2005) pp. 235-244. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm167-3-5/