Normability of Lorentz spaces—an alternative approach

Amiran Gogatishvili; Filip Soudský

Czechoslovak Mathematical Journal (2014)

  • Volume: 64, Issue: 3, page 581-597
  • ISSN: 0011-4642

Abstract

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We study normability properties of classical Lorentz spaces. Given a certain general lattice-like structure, we first prove a general sufficient condition for its associate space to be a Banach function space. We use this result to develop an alternative approach to Sawyer’s characterization of normability of a classical Lorentz space of type Λ . Furthermore, we also use this method in the weak case and characterize normability of Λ v . Finally, we characterize the linearity of the space Λ v by a simple condition on the weight v .

How to cite

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Gogatishvili, Amiran, and Soudský, Filip. "Normability of Lorentz spaces—an alternative approach." Czechoslovak Mathematical Journal 64.3 (2014): 581-597. <http://eudml.org/doc/262183>.

@article{Gogatishvili2014,
abstract = {We study normability properties of classical Lorentz spaces. Given a certain general lattice-like structure, we first prove a general sufficient condition for its associate space to be a Banach function space. We use this result to develop an alternative approach to Sawyer’s characterization of normability of a classical Lorentz space of type $\Lambda $. Furthermore, we also use this method in the weak case and characterize normability of $\Lambda _\{v\}^\{\infty \}$. Finally, we characterize the linearity of the space $\Lambda _\{v\}^\{\infty \}$ by a simple condition on the weight $v$.},
author = {Gogatishvili, Amiran, Soudský, Filip},
journal = {Czechoslovak Mathematical Journal},
keywords = {weighted Lorentz space; weighted inequality; non-increasing rearrangement; Banach function space; associate space; weighted Lorentz space; weighted inequality; non-increasing rearrangement; Banach function space; associate space},
language = {eng},
number = {3},
pages = {581-597},
publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},
title = {Normability of Lorentz spaces—an alternative approach},
url = {http://eudml.org/doc/262183},
volume = {64},
year = {2014},
}

TY - JOUR
AU - Gogatishvili, Amiran
AU - Soudský, Filip
TI - Normability of Lorentz spaces—an alternative approach
JO - Czechoslovak Mathematical Journal
PY - 2014
PB - Institute of Mathematics, Academy of Sciences of the Czech Republic
VL - 64
IS - 3
SP - 581
EP - 597
AB - We study normability properties of classical Lorentz spaces. Given a certain general lattice-like structure, we first prove a general sufficient condition for its associate space to be a Banach function space. We use this result to develop an alternative approach to Sawyer’s characterization of normability of a classical Lorentz space of type $\Lambda $. Furthermore, we also use this method in the weak case and characterize normability of $\Lambda _{v}^{\infty }$. Finally, we characterize the linearity of the space $\Lambda _{v}^{\infty }$ by a simple condition on the weight $v$.
LA - eng
KW - weighted Lorentz space; weighted inequality; non-increasing rearrangement; Banach function space; associate space; weighted Lorentz space; weighted inequality; non-increasing rearrangement; Banach function space; associate space
UR - http://eudml.org/doc/262183
ER -

References

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  1. Bennett, C., Sharpley, R., Interpolation of Operators, Pure and Applied Mathematics 129 Academic Press, Boston (1988). (1988) Zbl0647.46057MR0928802
  2. Carro, M., Pick, L., Soria, J., Stepanov, V. D., On embeddings between classical Lorentz spaces, Math. Inequal. Appl. 4 (2001), 397-428. (2001) Zbl0996.46013MR1841071
  3. Cwikel, M., Kamińska, A., Maligranda, L., Pick, L., 10.1090/S0002-9939-04-07477-5, Proc. Am. Math. Soc. 132 (2004), 3615-3625. (2004) Zbl1061.46026MR2084084DOI10.1090/S0002-9939-04-07477-5
  4. Gogatishvili, A., Pick, L., 10.4153/CMB-2006-008-3, Can. Math. Bull. 49 (2006), 82-95. (2006) Zbl1106.26018MR2198721DOI10.4153/CMB-2006-008-3
  5. Gogatishvili, A., Pick, L., 10.5565/PUBLMAT_47203_02, Publ. Mat., Barc. 47 (2003), 311-358. (2003) Zbl1066.46023MR2006487DOI10.5565/PUBLMAT_47203_02
  6. Lorentz, G. G., 10.2140/pjm.1951.1.411, Pac. J. Math. 1 (1951), 411-429. (1951) Zbl0043.11302MR0044740DOI10.2140/pjm.1951.1.411
  7. Sawyer, E., 10.4064/sm-96-2-145-158, Stud. Math. 96 (1990), 145-158. (1990) Zbl0705.42014MR1052631DOI10.4064/sm-96-2-145-158

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