Probabilistic inner product spaces are studied with detail.
@article{urn:eudml:doc:38914, title = {Espacios con producto interior probabil\'\i stico.}, journal = {Stochastica}, volume = {8}, year = {1984}, pages = {229-248}, zbl = {0578.60013}, mrnumber = {MR0796652}, language = {es}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:38914} }
Fortuny, Josep M.ª. Espacios con producto interior probabilístico.. Stochastica, Tome 8 (1984) pp. 229-248. http://gdmltest.u-ga.fr/item/urn:eudml:doc:38914/