Existence of mark functions in marked metric measure spaces

Existence of mark functions in marked metric measure spaces
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标记度量测度空间中标记函数的存在性

DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
Wolfgang Lohr
Wolfgang Lohr
中科院分区:
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文献类型:
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作者:
Sandra Kliem;Wolfgang Lohr

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在标记度量测度空间(mmm-空间)的背景下,我们给出了存在所谓的标记函数的准则。如果一个mmm-空间允许一个标记函数,我们称它为函数标记度量测度空间(fmm-空间)。这不是一个封闭的财产通常标记Gromov弱拓扑,因此,我们把特别强调的问题,在何种条件下,它结转到一个限制。我们得到了确定性mmm-空间以及随机mmm-空间和mmm-空间值过程的准则。作为一个例子,我们的标准被应用到证明,树值Fleming-Viot动力学与突变和选择从以前的作品承认在任何时候,几乎肯定的标记功能。因此,我们填补了以前证明这一事实的一个空白,它使用了一个错误的标准。此外,还详细研究了fmm-空间的稠密非闭子空间。我们证明了在这个子空间上存在一个度量,它诱导出标记Gromov-弱拓扑,并且是完备的。因此,fmm空间的空间是波兰空间。我们还构造了一个分解成封闭的集合,这是有关的情况下,一致等度连续的标志功能。
We give criteria on the existence of a so-called mark function in the context of marked metric measure spaces (mmm-spaces). If an mmm-space admits a mark function, we call it functionally-marked metric measure space (fmm-space). This is not a closed property in the usual marked Gromov-weak topology, and thus we put particular emphasis on the question under which conditions it carries over to a limit. We obtain criteria for deterministic mmm-spaces as well as random mmm-spaces and mmm-space-valued processes. As an example, our criteria are applied to prove that the tree-valued Fleming-Viot dynamics with mutation and selection from previous works admits a mark function at all times, almost surely. Thereby, we fill a gap in a former proof of this fact, which used a wrong criterion. Furthermore, the subspace of fmm-spaces, which is dense and not closed, is investigated in detail. We show that there exists a metric that induces the marked Gromov-weak topology on this subspace and is complete. Therefore, the space of fmm-spaces is a Polish space. We also construct a decomposition into closed sets which are related to the case of uniformly equicontinuous mark functions.
DOI: 10.1007/s00440-012-0413-8
发表时间: 2013
影响因子: 2
作者:
A. Greven;P. Pfaffelhuber;A. Winter
通讯作者: A. Winter
具有突变和竞争的性状依赖性分支的进化系统发育,第一部分:存在
DOI: 10.1016/j.spa.2018.07.011
发表时间: 2019
影响因子: 1.4
作者:
S. Kliem;A. Winter
通讯作者: A. Winter