Variational model of sandpile growth

Variational model of sandpile growth
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沙堆生长的变分模型

DOI:
10.1017/s0956792500002321
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发表时间:
1996
影响因子:
1.9
通讯作者:
L. Prigozhin
L. Prigozhin
中科院分区:
数学4区
文献类型:
--
作者:
L. Prigozhin

文献摘要

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考虑了一个描述不断增长的堆积形状演化的模型,并证明了该模型等价于一个演化拟变分不等式。如果支撑面没有陡峭的坡度,那么这个不等式就变成了一个变分不等式。对于这种情况,证明了解的存在唯一性。
A model describing the evolving shape of a growing pile is considered, and is shown to be equivalent to an evolutionary quasi-variational inequality. If the support surface has no steep slopes, the inequality becomes a variational one. For this case existence and uniqueness of the solution are proved.