infinite dimensional巴拿赫空间中的Bolzano-Poincaré-Miranda定理
The Bolzano-Poincaré-Miranda theorem in infinite dimensional Banach spaces
摘要:
研究了定义在巴拿赫空间中的映射零点的存在性。我们得到,特别是,著名的Bolzano-Poincaré-Miranda定理的无限维巴拿赫空间的一个扩展。我们还建立了任意巴拿赫空间中微分方程周期解存在性的一个结果。
英文摘要:
We study the existence of zeroes of mappings defined in Banach spaces. We obtain, in particular, an extension of the well-known Bolzano-Poincaré-Miranda theorem to infinite dimensional Banach spaces. We also establish a result regarding the existence of periodic solutions to differential equations posed in an arbitrary Banach space.
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