2 papers
math.AP2026
Invariance of measure under nonlinear wave and Schrödinger equations on the plane
Nikolay Barashkov, Petri Laarne
We show almost sure wellposedness of mild solution to the cubic nonlinear wave equation in a weighted Besov space over . To achieve this, we show that any weak limit o…
math.PR2025
Elliptic stochastic quantization of Sinh-Gordon QFT
Nikolay Barashkov, Francesco C. De Vecchi
The (elliptic) stochastic quantization equation for the (massive) model, for the charged parameter in the regime (i.e. $β^2 < 4 Ï$), is studied. We prove th…