A Comparative Study of Two Weighted Function-Space Formulations for a Degenerate–Singular Elliptic Operator. Uzbekistan Journal of Mathematics and Computer Science , [S. l.], v. 2, n. 2, p. 56–74, 2026. DOI: 10.56143/ujmcs.v2i2.5. Disponível em: https://ujmcs.tstu.uz/index.php/ujmcs/article/view/110. Acesso em: 28 oct. 2026.