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math.CO2026
The unlabeled list color function of disconnected graphs
Hemanshu Kaul, Jeffrey A. Mudrock, Armin Straub
Given a graph , its chromatic polynomial counts proper -colorings, while the corresponding list color function counts the minimum number of prope…
math.NT2026
Weakening the Legendre Conjecture
Marc Chamberland, Armin Straub
The world of primes has many gaps between evidence and theorems. Here, we review Legendre's conjecture on primes between consecutive squares and recent progress on the weaker quest…