An exact Fatou lemma for Gelfand integrals: a characterization of the Fatou property

An exact Fatou lemma for Gelfand integrals: a characterization of the Fatou property
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DOI:
10.1007/s11117-015-0359-z
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发表时间:
2016-06-01
期刊:
影响因子:
1
通讯作者:
Suzuki, Takashi
Suzuki, Takashi
中科院分区:
数学4区
文献类型:
--
作者:
Khan, M. Ali;Sagara, Nobusumi;Suzuki, Takashi

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我们在没有任何阶次结构的对偶 Banach 空间中,并且在底层测度空间的饱和性质下,为函数和多重函数的 Gelfand 积分建立了 Fatou 引理的精确版本。论证了Fatou性质饱和的必要性和充分性。我们的结果可以直接应用于没有凸性假设的饱和经济体的均衡存在结果。
We establish an exact version of Fatou's lemma for Gelfand integrals of functions and multifunctions in dual Banach spaces without any order structure, and under the saturation property on the underlying measure space. The necessity and sufficiency of saturation for the Fatou property is demonstrated. Our result has a direct application to the equilibrium existence result for saturated economies without convexity assumptions.