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Pointwise Debreu Lexicographic Powers

机译:点向杂物词典能力

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A linear ordering is Debreu (respectively, pointwise Debreu) if each of its suborderings can be mapped into it with an order-preserving function that is both injective (respectively, locally injective) and continuous (respectively, locally continuous) with respect to the order topology on both spaces. Each Debreu linear ordering is pointwise Debreu, but the converse does not hold. In the context of utility representations in mathematical economics, it has been proved that any lexicographic power with an uncountable exponent fails to be Debreu. We sharpen this result by analyzing lexicographic powers that are pointwise Debreu.
机译:如果可以使用一个顺序保持性函数将线性子顺序的每个子顺序映射到它中,则线性顺序是Debreu(分别是逐点Debreu)两个空间上的拓扑。每个Debreu线性顺序都是逐点Debreu,但是反之则不成立。在数学经济学中的效用表示形式的背景下,已经证明,具有不可数指数的任何词典编纂能力都不会是Debreu。我们通过分析点状Debreu的词典法能力来增强此结果。

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