“…Proving Theorems 1.3 and 1.4 requires understanding how derivatives commute past the Bergman projection. An initial difficulty is that H γ is not smoothly bounded, so Stokes' theorem cannot be applied in the usual way, e.g., as in [28,Lemma 3], [ There are other papers showing Bergman irregularity on L p 0 (Ω), for specific pseudoconvex Ω: [1,11,13,34]. A unifying result, explaining irregularity in these cases and [19,20], is lacking.…”