Isotropy groups for derivations in differential Ore extensions are described explicitly using Nowicki's decomposition, with a general criterion in singular cases governed by localization and the adjusted element w* = w + psi^{-1}H.
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On the isotropy of differential Ore extensions
Isotropy groups for derivations in differential Ore extensions are described explicitly using Nowicki's decomposition, with a general criterion in singular cases governed by localization and the adjusted element w* = w + psi^{-1}H.