Jah, Sidi Hamidou, and Lotfi Riahi. “Positive Solutions With a Singular Set for Semilinear Parabolic Equations”. Topological Methods in Nonlinear Analysis 65, no. 1 (March 31, 2025): 265–285. Accessed January 17, 2026. https://apcz.umk.pl/TMNA/article/view/60418.