σ‐Zero Sets and Characterization of σ‐Strongly Fixed Maximal Ideals in RH for σ‐Frames H. - Maghsoudloo Nejad, Zohreh; Karimi Feizabadi, Abolghasem; Zahmatkesh, Hossein; Haghbin, Ahmad; Jaballah, Ali (Journal of Mathematics, 2026)