@article{paperid:1020493, author = {Madjid Mirzavaziri, and Sal Moslehian, Mohammad}, title = {An approach to fuzzy Hilbert spaces}, journal = {Nonlinear Functional Analysis and Applications}, year = {2010}, volume = {14}, number = {5}, month = {January}, issn = {1229-1595}, pages = {781--792}, numpages = {11}, keywords = {Fuzzy inner product; fuzzy Hilbert space; Hilbert space; fuzzy normed space; Cauchy--Schwarz inequality; parallelogram law}, }