×

On uncomplemented isometric copies of \(c_0\) in spaces of continuous functions on products of the two-arrows space. II. (English) Zbl 1359.46015

Summary: Let \(\mathbb{L}\) be the two-arrows space. It is a separable, Hausdorff, compact space. Let \((\bigoplus_{n = 2}^\infty C(\mathbb{L}^n))_{c_0}\) be the \(c_0\)-sum of the sequence of Banach spaces of all continuous scalar (real or complex) functions on \(n\)-fold products of \(\mathbb{L}\). We show that for every subspace \(X\) of the Banach space \((\bigoplus_{n = 2}^\infty C(\mathbb{L}^n))_{c_0}\) isomorphic to \(c_0\) the quotient space \((\bigoplus_{n = 2}^\infty C(\mathbb{L}^n))_{c_0} / X\) does not contain any subspace isomorphic to \(c_0(\Gamma)\) for any uncountable set \(\Gamma\). The space \((\bigoplus_{n = 2}^\infty C(\mathbb{L}^n))_{c_0}\) contains an uncomplemented subspace isometric to \(c_0\).
For Part I see [ibid. 26, No. 1, 162–173 (2015; Zbl 1326.46016)].

MSC:

46B26 Nonseparable Banach spaces
46E15 Banach spaces of continuous, differentiable or analytic functions

Citations:

Zbl 1326.46016
Full Text: DOI

References:

[1] Bartle, R. G.; Graves, L. M., Mappings between function spaces, Trans. Amer. Math. Soc., 72, 400-413 (1952) · Zbl 0047.10901
[2] Correa, C.; Tausk, D. V., Compact lines and the Sobczyk property, J. Funct. Anal., 266, 5765-5778 (2014) · Zbl 1329.46008
[3] Engelking, R., General Topology, Monografie Matematyczne, vol. 60 (1977), PWN - Polish Scientific Publishers: PWN - Polish Scientific Publishers Warszawa · Zbl 0373.54002
[4] Johnson, W. B.; Lindenstrauss, J., Some remarks on weakly compactly generated Banach spaces, Israel J. Math., 17, 219-230 (1974) · Zbl 0306.46021
[5] Michalak, A., On uncomplemented isometric copies of \(c_0\) in spaces of continuous functions on products of the two-arrows space, Indag. Math. (N.S.), 26, 162-173 (2015) · Zbl 1326.46016
[7] Mrówka, S., On completely regular spaces, Fund. Math., 41, 105-106 (1954) · Zbl 0055.41304
[8] Phillips, R. S., On linear transformations, Trans. Amer. Math. Soc., 48, 516-541 (1940) · Zbl 0025.34202
[9] Whitley, R., Projecting \(m\) onto \(c_0\), Amer. Math. Monthly, 73, 285-286 (1965) · Zbl 0143.15301
[10] Zizler, V., Nonseparable Banach spaces, (Handbook of the Geometry of Banach Spaces, Vol. 2 (2003), North-Holland: North-Holland Amsterdam), 1743-1816 · Zbl 1041.46009
This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.