Some properties of spectral theory in fuzzy Hilbert spaces

Abstract EN

In this paper we give some definitions and properties of spectral theory in fuzzy Hilbert spaces also we introduce definitions Invariant under a linear operator Ton fuzzy normed spaces and reduced linear operator on fuzzy Hilbert spaces and we prove theorms related to eigenvalue and eigenvectors ,eigenspace in fuzzy normed, Invariant and reduced in fuzzy Hilbert spaces and show relationship between them.