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math.DS2026
Stable invariant measures in linear dynamics
Valentin Gillet
We study the existence of stable invariant measures for operators and strongly continuous semigroups of operators on Banach spaces admitting either a dense bilateral backward orbit…
math.FA2026
Weak limit semigroup in operator theory and ergodic theory
Tanja Eisner, Valentin Gillet
We study the weak limit semigroup of an operator , i.e., the set of all operators being weak limit points of the powers of , in three different but related contexts: Koopman…