Nonlinear stability analysis of positivity-preserving hyperbolic schemes
CurrentDeveloping a framework for nonlinear fully discrete stability analysis of hyperbolic PDE solvers, motivated by modified Patankar–Runge–Kutta methods that enforce positivity. The work extends classical von Neumann analysis toward state-dependent spectral behavior tracking, with the goal of analyzing how finite volume discretizations and positivity-preserving time integration interact in nonlinear settings.


