3 papers
math.AP2025
On the Landis Conjecture for Positive Quasi-linear Operators on Graphs
Ujjal Das, Matthias Keller, Yehuda Pinchover
We prove a Landis type unique continuation result for positive quasi-linear operators on graphs. Specifically, we give decay criteria that ensures when a harmonic function for a po…
math.AP2025
On the behavior of the ground state energy under weak perturbation of critical quasilinear operators in
Ujjal Das, Hynek KovaÅÃk, Yehuda Pinchover
We consider a critical quasilinear operator in perturbed by a weakly coupled potential. For , we find the leading asymptotic of the lowes…
math.AP2025
On Landis' conjecture for positive Schrödinger operators on graphs
Ujjal Das, Matthias Keller, Yehuda Pinchover
In this note we study the Landis conjecture for positive Schrödin\-ger operators on graphs. More precisely, we prove a Landis-type result in the form of a decay criterion that ens…