TY - JOUR AU - Gil', Michael TI - Perturbations of real parts of eigenvalues of bounded linear operators in a Hilbert space JO - Czechoslovak Mathematical Journal PY - 2024 SP - 567 EP - 573 VL - 74 IS - 2 UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2024.0468-23/ DO - 10.21136/CMJ.2024.0468-23 LA - en ID - 10_21136_CMJ_2024_0468_23 ER -