Convergence Analysis of Multi-Step Collocation Method to First-Order Volterra Integro-Differential Equation with Non-Vanishing Delay. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 2, p. 5766, 2025. DOI: 10.29020/nybg.ejpam.v18i2.5766. Disponível em: https://www.ejpam.com/ejpam/article/view/5766. Acesso em: 23 feb. 2026.