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arXiv 1105.1605math.MGmath.NT
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非阿基米德空间中Hausdorff度量的结构

The structures of Hausdorff metric in non-Archimedean spaces

Derong Qiu

摘要:

对于非阿基米德空间$ X $和$ Y, $,设$ \mathcal{M}_{\flat } (X), \mathfrak{M}(V \rightarrow W) $和$ \mathfrak{D}_{\flat }(X, Y) $分别为$ X $的球族、$ X $到$ Y, $的映射空间和$ X $的球族到$ Y, $的映射空间.通过明确地研究与这些空间相关的Hausdorff度量结构,我们构造了几个新的度量结构族(例如,$ \widehat{ρ} _{u}, \widehat{β}_{X, Y}^{λ}, \widehat{β}_{X, Y}^{\ast λ} $)在相应空间上的收敛性、结构关系、变分规律等问题,并研究了变量$ λ, $的赋范代数结构.在某种程度上,类$ \widehat{β}_{X, Y}^{λ} $是概率测度空间中通常的Levy-Prohorov度量的对应物,但它的行为非常不同,并且本身很有趣。当$ X $是紧的且$ Y = K $是完备的非阿基米德域时,我们构造并研究了$ X. $上$ K-$值测度空间的Dudly型度量

英文摘要:

For non-Archimedean spaces $ X $ and $ Y, $ let $ \mathcal{M}_{\flat } (X), \mathfrak{M}(V \rightarrow W) $ and $ \mathfrak{D}_{\flat }(X, Y) $ be the ballean of $ X $ (the family of the balls in $ X $), the space of mappings from $ X $ to $ Y, $ and the space of mappings from the ballen of $ X $ to $ Y, $ respectively. By studying explicitly the Hausdorff metric structures related to these spaces, we construct several families of new metric structures (e.g., $ \widehat{ρ} _{u}, \widehat{β}_{X, Y}^{λ}, \widehat{β}_{X, Y}^{\ast λ} $) on the corresponding spaces, and study their convergence, structural relation, law of variation in the variable $ λ, $ including some normed algebra structure. To some extent, the class $ \widehat{β}_{X, Y}^{λ} $ is a counterpart of the usual Levy-Prohorov metric in the probability measure spaces, but it behaves very differently, and is interesting in itself. Moreover, when $ X $ is compact and $ Y = K $ is a complete non-Archimedean field, we construct and study a Dudly type metric of the space of $ K-$valued measures on $ X. $

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