@article{10_21136_CMJ_2024_0468_23, author = {Gil', Michael}, title = {Perturbations of real parts of eigenvalues of bounded linear operators in a {Hilbert} space}, journal = {Czechoslovak Mathematical Journal}, pages = {567--573}, year = {2024}, volume = {74}, number = {2}, doi = {10.21136/CMJ.2024.0468-23}, mrnumber = {4764540}, zbl = {07893399}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.2024.0468-23/} }