We revisit Orlicz's proof of the square summability of the norms of the terms of an unconditionally convergent series in L¹. The result is then used to motivate abstract generalizations and concrete improvements.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-bc64-0-4, author = {J. Diestel}, title = {Orlicz and unconditionally convergent series in L$^1$}, journal = {Banach Center Publications}, volume = {65}, year = {2004}, pages = {39-50}, zbl = {1064.46014}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc64-0-4} }
J. Diestel. Orlicz and unconditionally convergent series in L¹. Banach Center Publications, Tome 65 (2004) pp. 39-50. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-bc64-0-4/