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The fragmentation equation with size diffusion: Small and large size behavior of stationary solutions
Author(s) -
Philippe Laurençot,
Christoph Walker
Publication year - 2021
Publication title -
kinetic and related models
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.987
H-Index - 28
eISSN - 1937-5093
pISSN - 1937-5077
DOI - 10.3934/krm.2021032
Subject(s) - exponent , fragmentation (computing) , exponential function , mathematics , statistical physics , algebraic number , mathematical analysis , physics , computer science , philosophy , linguistics , operating system
The small and large size behavior of stationary solutions to the fragmentation equation with size diffusion is investigated. It is shown that these solutions behave like stretched exponentials for large sizes, the exponent in the exponential being solely given by the behavior of the overall fragmentation rate at infinity. In contrast, the small size behavior is partially governed by the daughter fragmentation distribution and is at most linear, with possibly non-algebraic behavior. Explicit solutions are also provided for particular fragmentation coefficients.

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