k-Hop Domination Defect in a Graph. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 18, n. 1, p. 5716, 2025. DOI: 10.29020/nybg.ejpam.v18i1.5716. Disponível em: https://www.ejpam.com/ejpam/article/view/5716. Acesso em: 23 feb. 2026.