Jonah Robinson

collaborators

2 papers

math.SP2025

The Critical Point Degree of a Periodic Graph

Matthew Faust, Jonah Robinson, Frank Sottile

The critical point degree of a periodic graph operator is the number of critical points of its complex Bloch variety. Determining it is a step towards the spectral edges conjecture…

math.SP2024

Floquet Isospectrality of the Zero Potential for Discrete Periodic Schrödinger Operators

Matthew Faust, Wencai Liu, Rodrigo Matos +5

Let $Γ = q_{1} Z \oplus q_{2} Z \oplus \dots \oplus q_{d} Z$ , with $q_{j} \in (Z^{+})^{d}$ for each $j \in {1, \dots, d}$ , and denote by $Δ$ the discrete Laplacian…