A note on fragmentability and weak-G_delta sets
英文摘要：
In terms of fragmentability, we describe a new class of Banach spaces which do not contain weak-G_delta open bounded subsets. In particular, none of these spaces is isomorphic to a separable polyhedral space.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
