Sets of $\sigma$-porosity and sets of $\sigma $-porosity $(q)$
نویسندگان
چکیده
منابع مشابه
Sets of extended uniqueness and σ - porosity
We show that there exists a closed non-σ-porous set of extended uniqueness. We also give a new proof of Lyons’ theorem, which shows that the class of H(n)-sets is not large in U0.
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ژورنال
عنوان ژورنال: Časopis pro pěstování matematiky
سال: 1976
ISSN: 0528-2195
DOI: 10.21136/cpm.1976.117931