Maximizing Nash Social Welfare in Two-Value Instances: Delineating Tractability. - Akrami, Hannaneh; Chaudhury, Bhaskar Ray; Hoefer, Martin; Mehlhorn, Kurt; Schmalhofer, Marco; Shahkarami, Golnoosh; Varricchio, Giovanna; Vermande, Quentin; van Wijland, Ernest (Mathematics of Operations Research (INFORMS), 2026)