Abstract
Consider a system of Brownian particles on the real line where each pair of particles coalesces at a certain rate according to their intersection local time. Assume that there are infinitely many initial particles in the system. We give a necessary and sufficient condition for the number of particles to come down from infinity. We also identify the rate of this coming down from infinity for different initial configurations.
Original language | English |
---|---|
Pages (from-to) | 67-92 |
Number of pages | 26 |
Journal | Annals of Statistics |
Volume | 52 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2024 |
Keywords
- Coalescing Brownian motions
- Minkowski dimension
- SPDE
- Shiga's duality
- coming down from infinity
- nonlinear PDE