RAFAEL MARÍA RUBIO RUIZ2026-01-292026-01-29201610.1090/conm/674/135602-s2.0-85010011614https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/27468Mathematics (all)A nonlinear inequality involving the mean curvature of a spacelike surface in 3-dimensional GRW spacetimes and Calabi-Bernstein type problemsbook part