Prize-Collecting Steiner Tree: A 1.79 Approximation. - Ali Ahmadi; Iman Gholami; MohammadTaghi Hajiaghayi; Peyman Jabbarzade; Mohammad Mahdavi (STOC, 2024)

Bi-Criteria Metric Distortion. - Kiarash Banihashem; Diptarka Chakraborty; Shayan Chashm Jahan; Iman Gholami; MohammadTaghi Hajiaghayi; Mohammad Mahdavi; Max Springer (CoRR, 2024)

Prize-Collecting Forest with Submodular Penalties: Improved Approximation. - Ali Ahmadi; Iman Gholami; MohammadTaghi Hajiaghayi; Peyman Jabbarzade; Mohammad Mahdavi (IPCO, 2025)

Breaking a Long-Standing Barrier: 2-ϵ Approximation for Steiner Forest. - Ali Ahmadi; Iman Gholami; MohammadTaghi Hajiaghayi; Peyman Jabbarzade; Mohammad Mahdavi (CoRR, 2025)

2-Approximation for Prize-Collecting Steiner Forest. - Ali Ahmadi; Iman Gholami; MohammadTaghi Hajiaghayi; Peyman Jabbarzade; Mohammad Mahdavi (J. ACM, 2025)