English

Contractivity for Smoluchowski's coagulation equation with solvable kernels

Analysis of PDEs 2020-10-21 v1

Abstract

We show that the Smoluchowski coagulation equation with the solvable kernels K(x,y)K(x,y) equal to 22, x+yx+y or xyxy is contractive in suitable Laplace norms. In particular, this proves exponential convergence to a self-similar profile in these norms. These results are parallel to similar properties of Maxwell models for Boltzmann-type equations, and extend already existing results on exponential convergence to self-similarity for Smoluchowski's coagulation equation.

Cite

@article{arxiv.2003.11848,
  title  = {Contractivity for Smoluchowski's coagulation equation with solvable kernels},
  author = {José A. Cañizo and Bertrand Lods and Sebastian Throm},
  journal= {arXiv preprint arXiv:2003.11848},
  year   = {2020}
}
R2 v1 2026-06-23T14:27:57.557Z