Some properties of two-fuzzy pre-Hilbert space
By: al-Mayyahi, Nuri Farhan; Ibrahim, Layth S.. al-Qadisiyah Journal for Computer Science and Mathematics. Vol. 5, no. 2 (2013), pp.1-7, 7 p.
Subjects: Biorthogonal systems; Fuzzy mathematics; Fuzzy sets; Hilbert space