Mathematical theory of exchange-driven growth
Mathematical theory of exchange-driven growth
复制标题
交换驱动增长的数学理论
DOI:
10.1088/1361-6544/aaba8d
复制
发表时间:
2017
期刊:
影响因子:
1.7
通讯作者:
E. Esenturk
中科院分区:
文献类型:
--
作者:
E. Esenturk
Exchange-driven growth is a process in which pairs of clusters interact by exchanging single unit of mass at a time. The rate of exchange is given by an interaction kernel which depends on the masses of the two interacting clusters. In this paper we establish the fundamental mathematical properties of the mean field rate equations of this process for the first time. We find two different classes of behavior depending on whether is symmetric or not. For the non-symmetric case, we prove global existence and uniqueness of solutions for kernels satisfying . This result is optimal in the sense that we show for a large class of initial conditions and kernels satisfying the solutions cannot exist. On the other hand, for symmetric kernels, we prove global existence of solutions for ( while existence is lost for ( In the intermediate regime we can only show local existence. We conjecture that the intermediate regime exhibits finite-time gelation in accordance with the heuristic results obtained for particular kernels.
DOI:
10.1088/1742-5468/2015/11/p11031
发表时间:
2015
期刊:
Theory and Experiment
影响因子:
--
作者:
Chau Y
通讯作者:
Chau Y
影响因子:
2.4
作者:
B. Niethammer;J. J. L. Veláquez
通讯作者:
J. J. L. Veláquez
影响因子:
1.4
作者:
Grosskinsky S
通讯作者:
Grosskinsky S