Abstract Under general assumptions on the velocity field, it is possible to construct a flow that is forward untangled. Once such a flow has been selected, the associated transport problem is well-posed.

中文翻译：

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输运方程的流动解

摘要 在速度场的一般假设下，可以构造一个向前解开的流。一旦选择了这样的流，相关的传输问题就是适定的。