Characterization of Extremal Controls for Infinite Dimensional Time-Varying Systems. - Diomedes Barcenas; Hugo Leiva (SIAM J. Control. Optim., 2001)

A necessary and sufficient algebraic condition for the controllability of a thermoelastic plate equation. - Hugo Leiva (IMA J. Math. Control. Inf., 2003)

A necessary algebraic condition for controllability and observability of linear time-varying systems. - Hugo Leiva; Stefan Siegmund (IEEE Trans. Autom. Control., 2003)

A broad class of evolution equations are approximately controllable, but never exactly controllable. - Diomedes Barcenas; Hugo Leiva; Zoraida Sívoli (IMA J. Math. Control. Inf., 2005)

Controllability of a system of parabolic equations with non-diagonal diffusion matrix. - Hugo Leiva (IMA J. Math. Control. Inf., 2005)

Controllability of the Ornstein-Uhlenbeck equation. - Diomedes Barcenas; Hugo Leiva; Wilfredo Urbina (IMA J. Math. Control. Inf., 2006)

Controllability of Laguerre and Jacobi equations. - Diomedes Barcenas; Hugo Leiva; Yamilet Quintana; Wilfredo Urbina (Int. J. Control, 2007)

A necessary and sufficient condition for the controllability of linear systems in Hilbert spaces and applications. - Edgar Iturriaga; Hugo Leiva (IMA J. Math. Control. Inf., 2008)

Controllability of linear difference equations in Hilbert spaces and applications. - Hugo Leiva; Jahnett Uzcategui (IMA J. Math. Control. Inf., 2008)

Strongly convex set-valued maps. - Hugo Leiva; Nelson Merentes; Kazimierz Nikodem; José Luis Sánchez (J. Glob. Optim., 2013)

Rothe's fixed point theorem and controllability of semilinear nonautonomous systems. - Hugo Leiva (Syst. Control. Lett., 2014)

Controllability of semilinear impulsive nonautonomous systems. - Hugo Leiva (Int. J. Control, 2015)

Controllability of the perturbed Beam equation. - Alexander Carrasco; Hugo Leiva; Nelson Merentes (IMA J. Math. Control. Inf., 2016)

Controllability of the impulsive functional BBM equation with nonlinear term involving spatial derivative. - Hugo Leiva (Syst. Control. Lett., 2017)

Approximated controllability of the strongly damped impulsive semilinear wave equation with memory and delay. - Cristi D. Guevara; Hugo Leiva (IFAC J. Syst. Control., 2018)

Controllability of the impulsive semilinear beam equation with memory and delay. - Alexander Carrasco; G. Guevara; Hugo Leiva (IMA J. Math. Control. Inf., 2019)

The existence of mild solutions and approximate controllability for nonlinear fractional neutral evolution systems. - Zoubida Ech-chaffani; Ahmed Aberqi; Touria Karite; Hugo Leiva (Int. J. Appl. Math. Comput. Sci., 2024)

Approximate controllability for impulsive neutral semilinear evolution equations with nonlocal conditions. - Cosme Duque; Hugo Leiva; Touria Karite (IMA J. Math. Control. Inf., 2025)