Ashraf Huseynov
Ashraf Iskandar oglu Huseynov was an Azerbaijani mathematician. His area of contributions embraced nonlinear singular [integral equations], differential equations, potential theory and functional analysis.
Huseynov was the first to study the nonlinear Hilbert problem as applied to analytic functions. He also created the Hα, β, γ function space and proved some theorems for nonlinear singular integral equations with Cauchy kernel within that space. Huseynov held positions in some Azerbaijani scientific institutions.