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math.AP2026
Long-time behavior for systems of Fisher-KPP type with interacting components
Alexandra Stavrianidi
We study the long-time behavior of a triangular system of Fisher--KPP type with interacting components, associated with a reducible multitype branching Brownian motion with …
math.AP2026
On the density of the supremum of nonlinear SPDEs
Georgia Karali, Alexandra Stavrianidi, Konstantinos Tzirakis +1
We study the one-dimensional stochastic partial differential equation \begin{equation*} \frac{\partial u}{\partial t}(t,x) = -κ\frac{\partial^4 u}{\partial x^4}(t,x) + ρ\frac{\part…