A Banach Space which is Fully 2-Rotund but not Locally Uniformly Rotund
Canadian mathematical bulletin, Tome 26 (1983) no. 1, pp. 118-120
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A Banach space is fully 2-rotund if (x n ) converges whenever ‖x n + x m ‖ converges as m, n → ∞ and locally uniformly rotund if x n → x whenever ‖x n ‖ and ‖(x n + x)/2‖ → ‖x‖.We show that I 2 with the equivalent norm is fully 2-rotund but not locally uniformly rotund, thus answering in the negative a question first raised by Fan and Glicksberg in 1958.
Polak, T.; Sims, Brailey. A Banach Space which is Fully 2-Rotund but not Locally Uniformly Rotund. Canadian mathematical bulletin, Tome 26 (1983) no. 1, pp. 118-120. doi: 10.4153/CMB-1983-018-7
@article{10_4153_CMB_1983_018_7,
author = {Polak, T. and Sims, Brailey},
title = {A {Banach} {Space} which is {Fully} {2-Rotund} but not {Locally} {Uniformly} {Rotund}},
journal = {Canadian mathematical bulletin},
pages = {118--120},
year = {1983},
volume = {26},
number = {1},
doi = {10.4153/CMB-1983-018-7},
url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1983-018-7/}
}
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%0 Journal Article %A Polak, T. %A Sims, Brailey %T A Banach Space which is Fully 2-Rotund but not Locally Uniformly Rotund %J Canadian mathematical bulletin %D 1983 %P 118-120 %V 26 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1983-018-7/ %R 10.4153/CMB-1983-018-7 %F 10_4153_CMB_1983_018_7
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