DOI: 10.3390/math14152723 ISSN: 2227-7390
Final Developments on the Various Approximation Properties
Ju Myung KimIn this paper, we review some important results and introduce some open problems on modern variants related to the classical approximation property in points of view such as bounded approximation properties, approximation properties via operator ideals, approximation properties via tensor norms and approximated identities.