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COPIES OF c0(Γ) IN C(K, X) SPACES
被引:0
|作者:
Galego, Eloi Medina
[1
]
Hagler, James N.
[2
]
机构:
[1] Univ Sao Paulo, Dept Math, BR-05508090 Sao Paulo, Brazil
[2] Univ Denver, Dept Math, Denver, CO 80208 USA
关键词:
c(0)(Gamma) spaces;
C(K;
X);
spaces;
Josefson-Nissenzweig-alpha (JN(alpha)) property;
BANACH-SPACES;
D O I:
暂无
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
We extend some results of Rosenthal, Cembranos, Freniche, E. Saab-P. Saab and Ryan to study the geometry of copies and complemented copies of c(0)(Gamma) in the classical Banach spaces C(K, X) in terms of the carclinality of the set Gamma, of the density and caliber of K and of the geometry of X and its dual space X*. Here are two sample consequences of our results: (1) If C([0, 1], X) contains a copy of c(0)(N-1), then X contains a copy of c(0)(N-1). (2) C(beta N, X) contains a complemented copy of c(0)(N-1) if and only if X contains a copy of c(0)(N-1). Some of our results depend on set-theoretic assumptions. For example, we prove that it is relatively consistent with ZFC that if C(K) contains a copy of c(0)(N-1) and X has dimension NI, then C(K, X) contains a complemented copy of cc(0)(N-1).
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页码:3843 / 3852
页数:10
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