Abstract
The paper is devoted to investigating a class of unbounded perturbations of conservative linear operators. In the particular case of operators defined on compact differentiable manifolds, the Lie sum of two conservative operators is considered, extending a classical perturbation formula of the theory of Lie groups.
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Vesentini, E. Conservative perturbations of conservative operators. Rend. Circ. Mat. Palermo 47, 353–362 (1998). https://doi.org/10.1007/BF02851385
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DOI: https://doi.org/10.1007/BF02851385