L. Dumortier

On the nonnegative self-adjoint solutions of the operator Riccati equation for infinite dimensional systems

Joseph J. Winkin, Frank M. Callier, F. Callier, 1995 .

Partially stabilizing LQ-optimal control for stabilizable semigroup systems

F. Callier, L. Dumortier, 1998 .

Oscar Wilde’s Multitudes: Against Limiting His Photographic Iconography

L. Dumortier, 2014 .