Symmetry Regularization of 1D Generalized Coulomb Problems

For the 1D generalized Coulomb problems--a family that includes the quantizations of the 1D generalized Kepler problems of Ma-Meng-Xiao \cite{MMX2025}--we construct two explicit unitary intertwiners $\hatι_{\pm}$, the quantum analogs of the classical symmetry regularization maps $ι_{\pm}$ of \cite{M