SDMD estimates the Koopman semigroup as I + Δt times the gEDMD generator matrix; the paper's convergence proofs concern the matrix-exponential semigroup, not the operator the method actually uses.
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A Data-Driven Framework for Koopman Semigroup Estimation in Stochastic Dynamical Systems
SDMD estimates the Koopman semigroup as I + Δt times the gEDMD generator matrix; the paper's convergence proofs concern the matrix-exponential semigroup, not the operator the method actually uses.