کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4657754 1633066 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Monotone covering properties and properties they imply
ترجمه فارسی عنوان
ویژگی های پوشش یکنواخت و ویژگی هایی این مفهوم را می‌رسانند
کلمات کلیدی
فرافشرده یکنواخت؛ meta-Lindelöf مونوتونیک ؛ فرافشرده ارثی ؛ Stratifiable
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات هندسه و توپولوژی
چکیده انگلیسی

We study properties of spaces that were proven in an earlier paper of Chase and Gruenhage (2013) [5] to follow from monotonic metacompactness. We show that all of the results of that earlier paper that follow from the monotonic covering property follow just from these weaker properties. The results we obtain are either strengthenings of earlier results or are new even for the monotonic covering property. In particular, some corollaries are that monotonically countably metacompact spaces are hereditarily metacompact, and separable monotonically countably metacompact spaces are metrizable. It follows that the well-known examples of stratifiable spaces given by McAuley and Ceder are not monotonically countably metacompact; we show that they are not monotonically meta-Lindelöf either. Finally, we answer a question of Gartside and Moody by exhibiting a stratifiable space which is monotonically paracompact in the locally finite sense, but not monotonically paracompact in the sense of Gartside and Moody.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Topology and its Applications - Volume 213, 1 November 2016, Pages 135–144
نویسندگان
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