A Short Proof that Some Mappings of the Unit Ball of ℓ2 Are Never Nonexpansive

  1. Ferrer, J.
  2. Llorens-Fuster, E.
Aldizkaria:
American Mathematical Monthly

ISSN: 1930-0972 0002-9890

Argitalpen urtea: 2020

Alea: 127

Zenbakia: 4

Orrialdeak: 354-358

Mota: Oharra

DOI: 10.1080/00029890.2020.1704168 GOOGLE SCHOLAR