George, S.Padikkal, J.Kunnarath, A.Argyros, I.K.Regmi, S.2026-02-042024Modelling, 2024, 5, 2, pp. 530-548https://doi.org/10.3390/modelling5020028https://idr.nitk.ac.in/handle/123456789/21070The modeling of many problems of practical interest leads to nonlinear ill-posed equations (for example, the parameter identification problem (see the Numerical section)). In this article, we introduce a new source condition (SC) and a new parameter choice strategy (PCS) for the Tikhonov regularization (TR) method for nonlinear ill-posed problems. The new PCS is introduced using a new SC to compute the regularization parameter (RP) before computing the regularized solution. The theoretical results are verified using a numerical example. © 2024 by the authors.ill-posed problemsparameter choice strategysource conditionTikhonov regularization method