منابع مشابه
2 7 N ov 2 00 1 STRONGLY MEAGER SETS CAN BE QUITE BIG
Lemma 1. 1. I is a σ-ideal, 2. I ⊆ (s)0, 3. I 6 = (s)0 (in ZFC). Notice that such a σ – ideal was defined and investigated in several papers, see for example [4]. Since strongly meager sets and strong measure zero sets are (s)0 it makes sense to ask if they are in I. It is well-known that SN ⊆ I. In fact, if F : 2 −→ 2 is a continuous function and X ∈ SN then F”(X) ∈ SN . The purpose of this pa...
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ژورنال
عنوان ژورنال: Israel Journal of Mathematics
سال: 2004
ISSN: 0021-2172,1565-8511
DOI: 10.1007/bf02787551