PREPRINTS

1. with M. Mori, Nonexapnsive and noncontractive mappings on the set of quantum pure states, accepted in Proc. Roy. Soc. Edinburgh Sect. A (https://doi.org/10.1017/prm.2024.133 ) 
2. with M. Mori, Optimal version of the fundamental theorem of chronogeometry (pdf ) 
3. Approximate isometries of Hilbert spaces, accepted in Proc. Amer. Math. Soc. (pdf ) 
4. Order automorphisms of effect algebras (pdf )