S. Usha, and D. Senthilkumar. “Spectral Properties of Operators Satisfying the Generalized Weyl– Drazin Property With Applications to Machine Learning”. Utilitas Mathematica 122, no. 2 (September 18, 2025): 1090–1099. Accessed July 6, 2026. https://utilitasmathematica.com/index.php/Index/article/view/2822.