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A partial classification of inverse limits with irreducible functions

机译:具有不可约函数的逆极限的部分分类

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We discuss a class of upper semi-continuous set-valued functions called irreducible functions, and we develop multiple tools for distinguishing topologically between their inverse limits. First, we discuss properties of subcontinua of their inverse limits, and we use those properties to show that for certain irreducible functions, given two, if their graphs contain different (finite) numbers' of maximal nowhere dense arcs, then they have topologically distinct inverse limits. Additionally, we discuss endpoints of inverse limits with irreducible functions, and finally, we apply these tools to obtain a complete classification of the inverse limits arising from four specific families of irreducible functions. (C) 2015 Elsevier B.V. All rights reserved.
机译:我们讨论了一类称为不可约函数的上半连续集值函数,并且我们开发了多种工具来从拓扑上区分它们的逆极限。首先,我们讨论其极限极限的子连续性的性质,并使用这些性质表明对于某些不可约函数,给定两个,如果它们的图包含不同(有限)个数的最大无处密集弧,则它们具有拓扑上不同的逆限制。此外,我们讨论了具有不可约函数的逆极限的端点,最后,我们应用了这些工具来获得由四个特定的不可约函数族引起的逆极限的完整分类。 (C)2015 Elsevier B.V.保留所有权利。

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