Books

  1. Modern approaches to the invariant subspace problem (with J. Partington), Cambridge Tracts in Mathematics 188, Cambridge University Press, xi, 285 p. (2011).
  2. Techniques d’algèbres duales et sous-espaces invariants (french). [Dual algebra techniques and invariant subspaces]. Monografii Matematice [Mathematical Monographs], 55, Universitatea de Vest din Timisorara, Facultatea de Matematica, Timisoara,  iv+94p. (1995).
  3. Le problème du sous-espace invariant (avec J. Esterle). In. Development of Mathematics 1950-2000, edited by J. P. Pier, Birkauser (Bale) (2000).