Irregular boundary value problems for ordinary differential equations Yakubov, Yakov — 2002 Equadiff 10
Completeness of elementary solutions of second order elliptic equations in a semi-infinite tube domain. Yakubov, Yakov — 2002 Electronic Journal of Differential Equations (EJDE) [electronic only]
Hyperbolic differential-operator equations on a whole axis. Yakubov, Yakov — 2004 Abstract and Applied Analysis
Boundary-value problems for the biharmonic equation with a linear parameter. Yakubov, Yakov — 2002 Electronic Journal of Differential Equations (EJDE) [electronic only]