Repository: Freie Universität Berlin, Math Department

Bilinear Coagulation Equations

Heydecker, Daniel and Patterson, Robert I. A. (2019) Bilinear Coagulation Equations. SFB1114 Preprint in arxiv:1902.07686 . (Unpublished)

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Bilinear Coagulation Equations Daniel Heydecker, Robert I. A. Patterson (Submitted on 20 Feb 2019 (v1), last revised 14 Oct 2019 (this version, v2)) We consider coagulation equations of Smoluchowski or Flory type where the total merge rate has a bilinear form π(y)⋅Aπ(x) for a vector of conserved quantities π , generalising the multiplicative kernel. For these kernels, a gelation transition occurs at a finite time t g ∈(0,∞) , which can be given exactly in terms of an eigenvalue problem in finite dimensions. We prove a hydrodynamic limit for a stochastic coagulant, including a corresponding phase transition for the largest particle, and exploit a coupling to random graphs to extend analysis of the limiting process beyond the gelation time. Comments: Generalises the previous version to focus on general coagulation processes of bilinear type, without restricting to the single example of the previous version. The previous results are mentioned as motivation, and all results of the previous version can be obtained from this more general version Subjects: Probability (math.PR) Cite as: arXiv:1902.07686 [math.PR] (or arXiv:1902.07686v2 [math.PR] for this version) Submission history From: Daniel Heydecker [view email] [v1]Wed, 20 Feb 2019 18:13:20 UTC (66 KB) [v2] Mon, 14 Oct 2019 21:05:51 UTC (56 KB)

Item Type:Article
Subjects:Mathematical and Computer Sciences > Mathematics > Applied Mathematics
Divisions:Department of Mathematics and Computer Science > Institute of Mathematics
ID Code:2398
Deposited By: Monika Drueck
Deposited On:13 Feb 2020 12:44
Last Modified:13 Feb 2020 14:30

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