Rigorous Spectral Analysis of a Schrödinger Operator with Fractional and Logarithmic Perturbations: Fixed-Point Formulation and Explicit Constants. jast [Internet]. 2026 Sep. 28 [cited 2026 Sep. 29];4(9):2575-611. Available from: https://journals.su.edu.ye/index.php/jast/article/view/3539