2024-03-28T18:54:56Z
https://u-ryukyu.repo.nii.ac.jp/oai
oai:u-ryukyu.repo.nii.ac.jp:02005345
2022-10-31T02:38:59Z
1642837622505:1642837628262:1642837632722
1642838403551:1642838406414
Estimates for the degree of best approximation in Banach spaces
Nishishiraho, Toshihiko
西白保, 敏彦
open access
We give estimates for the degree of the best approximation by elements of closed linear subspaces associated with a sequence of projection operators on Banach spaces and obtain inverse theorems of Bernstein type. The results are applied to the best approximation by trigonometric polynomials in homogeneous Banach spaces which include the classical function spaces, as special cases.
紀要論文
Department of Mathematical Sciences, Faculty of Science, University of the Ryukyus
1998-12-30
eng
departmental bulletin paper
VoR
http://hdl.handle.net/20.500.12000/15967
http://hdl.handle.net/20.500.12000/15967
https://u-ryukyu.repo.nii.ac.jp/records/2005345
1344-008X
AA10779580
Ryukyu mathematical journal
11
75
86
https://u-ryukyu.repo.nii.ac.jp/record/2005345/files/Vol11p075.pdf