Convex functions on Banach spaces not containing l1
Canadian mathematical bulletin, Tome 40 (1997) no. 1, pp. 10-18

Voir la notice de l'article provenant de la source Cambridge University Press

There is a sizeable class of results precisely relating boundedness, convergence and differentiability properties of continuous convex functions on Banach spaces to whether or not the space contains an isomorphic copy of l1. In this note, we provide constructions showing that the main such results do not extend to natural broader classes of functions.
DOI : 10.4153/CMB-1997-002-1
Mots-clés : 46A55, 46B20, 52A41
Borwein, Jon; Vanderwerff, Jon. Convex functions on Banach spaces not containing l1. Canadian mathematical bulletin, Tome 40 (1997) no. 1, pp. 10-18. doi: 10.4153/CMB-1997-002-1
@article{10_4153_CMB_1997_002_1,
     author = {Borwein, Jon and Vanderwerff, Jon},
     title = {Convex functions on {Banach} spaces not containing l1},
     journal = {Canadian mathematical bulletin},
     pages = {10--18},
     year = {1997},
     volume = {40},
     number = {1},
     doi = {10.4153/CMB-1997-002-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1997-002-1/}
}
TY  - JOUR
AU  - Borwein, Jon
AU  - Vanderwerff, Jon
TI  - Convex functions on Banach spaces not containing l1
JO  - Canadian mathematical bulletin
PY  - 1997
SP  - 10
EP  - 18
VL  - 40
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1997-002-1/
DO  - 10.4153/CMB-1997-002-1
ID  - 10_4153_CMB_1997_002_1
ER  - 
%0 Journal Article
%A Borwein, Jon
%A Vanderwerff, Jon
%T Convex functions on Banach spaces not containing l1
%J Canadian mathematical bulletin
%D 1997
%P 10-18
%V 40
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1997-002-1/
%R 10.4153/CMB-1997-002-1
%F 10_4153_CMB_1997_002_1

[1] 1. Beer, G., Topologies on Closed and Closed Convex Sets, Kluwer Academic Publishers, The Netherlands, 1993. Google Scholar

[2] 2. Beer, G. and Borwein, J., Mosco and slice convergence of level sets and graphs of linear functionals, J. Math. Anal. Appl. 175 (1993), 53–67. Google Scholar

[3] 3. Borwein, J., Asplund spaces are “sequentially reflexive”, CORR 91–14, University of Waterloo, 1991. Google Scholar

[4] 4. Borwein, J. and Fabian, M., On convex functions having points of Gateaux differentiability which are not points of Fréchet differentiability, Canad. J. Math. 45 (1993), 1121–1134. Google Scholar

[5] 5. Borwein, J., Fabian, M. and Vanderwerff, J., Locally Lipschitz functions and bornological derivatives, CECM Research Report 93–012, Simon Fraser University, 1993. Google Scholar

[6] 6. Borwein, J., Fitzpatrick, S. and Vanderwerff, J., Examples of convex functions and classifications of normed spaces, J. Convex Analysis 1 (1994), 61–73. Google Scholar

[7] 7. Borwein, J. and Vanderwerff, J., Epigraphical and uniform convergence of convex functions, Trans. Amer. Math. Soc. 348 (1996), 1617–1631. Google Scholar

[8] 8. Diestel, J., Sequences and Series in Banach Spaces, Graduate Texts in Mathematics 92, Springer-Verlag, Berlin–New York–Tokyo, 1984. Google Scholar

[9] 9. Hagler, J. and Johnson, W. B., On Banach spaces whose dual balls are not weakŁ sequentially compact, Israel J. Math. 28 (1977), 325–330. Google Scholar

[10] 10. Ørno, P., On J. Borwein's concept of sequentially reflexive Banach spaces, Banach Bulletin Board, 1991. Google Scholar

[11] 11. Phelps, R. R., Convex Functions, Monotone Operators and Differentiability, Lecture Notes inMathematics 1364, Springer–Verlag, 1989. Google Scholar

Cité par Sources :