TY  - JOUR 
AU  - Avilés Redondo, Antonio Daniel
AU  - Martínez Cervantes, Gonzalo
AU  - Rueda Zoca, Abraham
PY  - 2023
UR  - https://hdl.handle.net/10481/84800
AB  - A result of G. Godefroy asserts that a Banach space 
X
 contains an isomorphic copy of 
ℓ
1
 if and only if there is an equivalent norm 
|
|
|
⋅
|
|
|
 such that, for every finite-dimensional subspace 
Y
 of 
X
 and every 
ε
>
0
,...
LA  - eng
PB  - Universitat Autònoma de Barcelona
KW  - Ball-covering
KW  - ℓ1(κ)
KW  - Octahedral norm
KW  - Renorming
TI  - A renorming Characterisation of Banach Spaces containing ℓ 1 ( κ )
DO  - 10.5565/PUBLMAT6722305
ER  -