Solutions’ Existence for A Hyperbolic Nonlinear Wave Equation of Kirchhoff Type in Unbounded Domains and Estimation of The Upper Bound for The Blow-Up Time of The Solutions. Mathematical Structures and Computational Modeling, [S. l.], v. 2, p. 85–101, 2026. DOI: 10.65904/3083-1733.2026.2.8. Disponível em: https://mscmjournal.com/index.php/mscm/article/view/28. Acesso em: 25 sep. 2026.