1. with Clement de Seguins Pazzis, Continuous space-time transformations, accepted in Adv. Geom. ( pdf
  2. Order and spectrum preserving maps on positive operators, accepted in Canad. J. Math. , ( pdf
  3. Order isomorphisms of operator intervals, accepted in Integral Equations Operator Theory ( pdf
  4. Endomorphisms of the poset of idempotent matrices ( pdf