Abstract We consider different notions of boundary traces for functions in Sobolev spaces defined on regular trees and show that the almost everywhere existence of these traces is independent of the chosen definition of a trace.

中文翻译：

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常规树上的跟踪运算符

摘要 我们考虑了定义在规则树上的 Sobolev 空间中函数的边界迹的不同概念，并表明这些迹几乎无处不在的存在与所选的迹定义无关。