Fuzzy-Quotient Groups. - Nehad N. Morsi; Samy El-Badawy Yehia (Inf. Sci., 1994)

On fuzzy linear representations of finite groups. - Samy El-Badawy Yehia (Fuzzy Sets Syst., 1996)

Fuzzy ideals and fuzzy subalgebras of Lie algebras. - Samy El-Badawy Yehia (Fuzzy Sets Syst., 1996)

The adjoint representation of fuzzy Lie algebras. - Samy El-Badawy Yehia (Fuzzy Sets Syst., 2001)