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| Autor principal: | |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | https://arxiv.org/abs/2605.14452 |
| Etiquetas: |
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- In the paper, we study spatially distributed particle systems whose time evolution is governed by vanishing diffusion in space $\mathbb{R}^d$, $d\ge 1$, and by size-continuous fragmentation and coagulation processes with unbounded rates. We show that for a large class of coefficients, such systems are classically locally well-posed, provided the diffusion and the coagulation processes are suitably dominated by the fragmentation. In the special case of power rates, we demonstrate existence of global in time classical solutions in all spatial dimensions $d\ge 1$ and without any restrictions on the size of input data.