Norm attaining multilinear forms and polynomials on preduals of Lorentz sequence spaces

M. Jimenéz Sevilla; Rafael Payá

Studia Mathematica (1998)

  • Volume: 127, Issue: 2, page 99-112
  • ISSN: 0039-3223

Abstract

top
For each natural number N, we give an example of a Banach space X such that the set of norm attaining N-linear forms is dense in the space of all continuous N-linear forms on X, but there are continuous (N+1)-linear forms on X which cannot be approximated by norm attaining (N+1)-linear forms. Actually,X is the canonical predual of a suitable Lorentz sequence space. We also get the analogous result for homogeneous polynomials.

How to cite

top

Jimenéz Sevilla, M., and Payá, Rafael. "Norm attaining multilinear forms and polynomials on preduals of Lorentz sequence spaces." Studia Mathematica 127.2 (1998): 99-112. <http://eudml.org/doc/216467>.

@article{JimenézSevilla1998,
abstract = {For each natural number N, we give an example of a Banach space X such that the set of norm attaining N-linear forms is dense in the space of all continuous N-linear forms on X, but there are continuous (N+1)-linear forms on X which cannot be approximated by norm attaining (N+1)-linear forms. Actually,X is the canonical predual of a suitable Lorentz sequence space. We also get the analogous result for homogeneous polynomials.},
author = {Jimenéz Sevilla, M., Payá, Rafael},
journal = {Studia Mathematica},
keywords = {norm attaining multilinear forms and polynomials; weakly continuous multilinear forms and polynomials; Lorentz sequence spaces; norm attaining multilinear forms; Lorentz sequence space},
language = {eng},
number = {2},
pages = {99-112},
title = {Norm attaining multilinear forms and polynomials on preduals of Lorentz sequence spaces},
url = {http://eudml.org/doc/216467},
volume = {127},
year = {1998},
}

TY - JOUR
AU - Jimenéz Sevilla, M.
AU - Payá, Rafael
TI - Norm attaining multilinear forms and polynomials on preduals of Lorentz sequence spaces
JO - Studia Mathematica
PY - 1998
VL - 127
IS - 2
SP - 99
EP - 112
AB - For each natural number N, we give an example of a Banach space X such that the set of norm attaining N-linear forms is dense in the space of all continuous N-linear forms on X, but there are continuous (N+1)-linear forms on X which cannot be approximated by norm attaining (N+1)-linear forms. Actually,X is the canonical predual of a suitable Lorentz sequence space. We also get the analogous result for homogeneous polynomials.
LA - eng
KW - norm attaining multilinear forms and polynomials; weakly continuous multilinear forms and polynomials; Lorentz sequence spaces; norm attaining multilinear forms; Lorentz sequence space
UR - http://eudml.org/doc/216467
ER -

References

top
  1. [1] M. D. Acosta, F. J. Aguirre and R. Payá, There is no bilinear Bishop-Phelps Theorem, Israel J. Math. 93 (1996), 221-227. Zbl0852.46010
  2. [2] M. D. Acosta, F. J. Aguirre and R. Payá, A space by W. Gowers and new results on norm and numerical radius attaining operators, Acta Univ. Carolin. Math. Phys. 33 (1992), 5-14. Zbl0786.47002
  3. [3] F. J. Aguirre, Algunos problemas de optimización en dimensión infinita: aplicaciones lineales y multilineales que alcanzan su norma, Tesis Doctoral, Universidad de Granada, 1995. 
  4. [4] Z. Altshuler, P. G. Casazza and B.-L. Lin, On symmetric basic sequences in Lorentz sequence spaces, Israel J. Math. 15 (1973), 140-155. Zbl0264.46011
  5. [5] R. Aron, C. Finet and E. Werner, Some remarks on norm attaining N-linear forms, in: Function Spaces, K. Jarosz (ed.), Lecture Notes in Pure and Appl. Math. 172, Marcel Dekker, New York, 1995, 19-28. Zbl0851.46008
  6. [6] E. R. Bishop and R. R. Phelps, A proof that every Banach space is subreflexive, Bull. Amer. Math. Soc. 67 (1961), 97-98. Zbl0098.07905
  7. [7] P. G. Casazza and B.-L. Lin, On symmetric sequences in Lorentz sequence spaces II, Israel J. Math. 17 (1974), 191-218. Zbl0286.46019
  8. [8] Y. S. Choi, Norm attaining bilinear forms on L 1 [ 0 , 1 ] , J. Math. Anal. Appl., to appear. Zbl0888.46007
  9. [9] Y. S. Choi and S. G. Kim, Norm or numerical radius attaining multilinear mappings and polynomials, J. London Math. Soc. 54 (1996), 135-147. Zbl0858.47005
  10. [10] V. Dimant and S. Dineen, Banach subspaces of spaces of holomorphic functions and related topics, preprint. Zbl0935.46048
  11. [11] V. Dimant and I. Zalduendo, Bases in spaces of multilinear forms over Banach spaces, J. Math. Anal. Appl. 200 (1996), 548-566. Zbl0867.46006
  12. [12] D. J. H. Garling, On symmetric sequence spaces, Proc. London Math. Soc. 16 (1966), 85-106. Zbl0136.10701
  13. [13] R. Gonzalo and J. A. Jaramillo, Compact polynomials between Banach spaces, Extracta Math. 8 (1993), 42-48. Zbl1016.46503
  14. [14] W. T. Gowers, Symmetric block bases of sequences with large average growth, Israel J. Math. 69 (1990), 129-151. Zbl0721.46010
  15. [15] P. Harmand, D. Werner and W. Werner, M-Ideals in Banach Spaces and Banach Algebras, Lecture Notes in Math. 1547, Springer, Berlin, 1993. Zbl0789.46011
  16. [16] H. Knaust, Orlicz sequence spaces of Banach-Saks type, Arch. Math. (Basel) 59 (1992), 562-565. Zbl0735.46009
  17. [17] J. Lindenstrauss and L. Tzafriri, Classical Banach Spaces I, Springer, 1977. Zbl0362.46013
  18. [18] J. Lindenstrauss and L. Tzafriri, Classical Banach Spaces II, Springer, 1979. Zbl0403.46022
  19. [19] S. Reisner, A factorization theorem in Banach lattices and its applications to Lorentz spaces, Ann. Inst. Fourier (Grenoble) 31 (1) (1981), 239-255. Zbl0437.46025
  20. [20] W. L. C. Sargent, Some sequence spaces related to the l p spaces, J. London Math. Soc. 35 (1960), 161-171. Zbl0090.03703
  21. [21] A. E. Tong, Diagonal submatrices of matrix maps, Pacific J. Math. 32 (1970), 551-559. Zbl0194.06103

NotesEmbed ?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

    
                

Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.