3 papers
math-ph2026
Factorization for the matrix-valued general Jacobi system on the full-line lattice
Tuncay Aktosun, Abdon E. Choque-Rivero, Vassilis G. Papanicolaou +2
The Jacobi system with matrix-valued coefficients and with the spectral parameter depending on a matrix-valued weight factor is considered on the full-line lattice. The scattering…
math.PR2026
A Probabilistic Model for Forest Fires
Vassilis G. Papanicolaou
We propose a discrete two-dimensional mathematical model for forest fires and we derive certain results describing its limiting behavior. We also pose a relevant open question.
math.SP2025
Non-Self-Adjoint Hill Operators whose Spectrum is a Real Interval
Vassilis G. Papanicolaou
Let , , where is a periodic potential, and suppose that the spectrum of is the positive semi-axis . In the c…