Operators and Matrices · Volume 4, Issue 4 Linear maps preserving the minimum and surjectivity moduli of operators 04-27 Pages 511-518 DOI 10.7153/oam-04-27 Downloads Short PDF Full PDF PNG Authors Mostafa Mbekhta Keywords minimum modulus surjectivity modulus Jordan isomorphism linear preservers Subject classes 47B48 47A10 46H05