[Lecture Notes in Mathematics] Partial Differential Equations and Related Topics Volume 446 || Exact controllability of linear systems in infinite dimensional spacesGoldstein, Jerome A. · 1975

[Lecture Notes in Mathematics] Seminar on Differential Equations and Dynamical Systems, II Volume 144 || Controllability of linear oscillatory systems using positive controlsYorke, J. A. · 1970

[Lecture Notes in Mathematics] Controllability of Partial Differential Equations Governed by Multiplicative Controls Volume 1995 || The 1-D Wave and Rod Equations Governed by Controls That Are Time-Dependent OnlyKhapalov, Alexander Y. · 2010

Exact controllability of second-order hyperbolic equations with impulse controlsKhapalov, Alexander Y. · Applicable Analysis · 1996

Mobile Point Sensors and Actuators in the Controllability Theory of Partial Differential Equations ||Khapalov, Alexander Y. · 2017

Micromotions of a Swimmer in the 3-D Incompressible Fluid Governed by the Nonstationary Stokes EquationKhapalov, Alexander Y. · SIAM Journal on Mathematical Analysis · 2013

Global non-negative controllability of the semilinear parabolic equation governed by bilinear controlKhapalov, Alexander Y. · ESAIM: Control, Optimisation and Calculus of Variations · 2002

Mobile Point Sensors and Actuators in the Controllability Theory of Partial Differential Equations || Controllability of the Wave Equation Governed by Mobile Point ControlsKhapalov, Alexander Y. · 2017

Mobile Point Sensors and Actuators in the Controllability Theory of Partial Differential Equations || Semilinear Parabolic Equations: Mobile Point Controls Versus Locally Distributed OnesKhapalov, Alexander Y. · 2017

Reachability of nonnegative equilibrium states for the semilinear vibrating string by varying its axial load and the gain of dampingKhapalov, Alexander Y. · ESAIM: Control, Optimisation and Calculus of Variations · 2006