On λ-Forman-Ricci curvature of networksJ.A. Mendez-Bermudez, Rosalio Reyes Guillermo, José M. Rodriguez and José M. SigarretaRAIRO-Oper. Res., 59 6 (2025) 3729-3747DOI: https://doi.org/10.1051/ro/2025124