Jacobi summability
β Scribed by Richard Askey
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 267 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0021-9045
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The paper deals with approximation properties of JAcoBI-FOURIER-expansions in dependence of smoothness properties of the treated functions. Such relations are wellknown for trigonometrical series, we refer to LEINDLER [6], [7], OSKOLKOV [9], SCHMEIS-SER and SICKEL [ll]. In the same way as in the pa
It is proved, under Martin's Axiom, that all (!1; !1) gaps in P(N)=ΓΏn are indestructible in any forcing extension by a separable measure algebra. This naturally leads to a new type of gap, a summable gap. The results of these investigations have applications in Descriptive Set Theory. For example, i
A fuzzy subset Ξ± of a fuzzy topological space is fuzzy sequentially compact if any sequence x = (Ξ» xn an ) of fuzzy points in Ξ± has a generalized fuzzy subsequence which is fuzzy convergent in Ξ±. More generally we say that a fuzzy subset Ξ± of a fuzzy topological space X is G-fuzzy sequentially compa