All Stories

  1. Linear maps preserving A-unitary operators

    Article • Mathematica Bohemica, March 2016, Institute of Mathematics, Czech Academy of Sciences

    Samir KABBAJ, Ahmed Charifi

  2. Ultrametric approximations of a Drygas functional equation

    Article • Advances in Pure and Applied Mathematics, January 2016, De Gruyter

    EMERITUS PROFESSOR JOHN RASSIAS, Ahmed Charifi, Muaadh Almahalebi, Samir KABBAJ

  3. Mappings preserving unit distance on Heisenberg group

    Article • Tbilisi Mathematical Journal, January 2015, De Gruyter

    EMERITUS PROFESSOR JOHN RASSIAS, Ahmed Charifi, Samir KABBAJ