Geodesic
Sums of Idempotents in Banach Algebras
Canadian mathematical bulletin, Tome 31 (1988) no. 4, pp. 448-451

Voir la notice de l'article provenant de la source Cambridge

DOI

We prove that the sum of two idempotents is in a Banach algebra is itself an idempotent if and only if it is power-bounded.
DOI : 10.4153/CMB-1988-065-4
Mots-clés : 46H05 
Kalton, N. J. Sums of Idempotents in Banach Algebras. Canadian mathematical bulletin, Tome 31 (1988) no. 4, pp. 448-451. doi: 10.4153/CMB-1988-065-4
@article{10_4153_CMB_1988_065_4,
     author = {Kalton, N. J.},
     title = {Sums of {Idempotents} in {Banach} {Algebras}},
     journal = {Canadian mathematical bulletin},
     pages = {448--451},
     year = {1988},
     volume = {31},
     number = {4},
     doi = {10.4153/CMB-1988-065-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-065-4/}
}
TY  - JOUR
AU  - Kalton, N. J.
TI  - Sums of Idempotents in Banach Algebras
JO  - Canadian mathematical bulletin
PY  - 1988
SP  - 448
EP  - 451
VL  - 31
IS  - 4
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-065-4/
DO  - 10.4153/CMB-1988-065-4
ID  - 10_4153_CMB_1988_065_4
ER  - 
%0 Journal Article
%A Kalton, N. J.
%T Sums of Idempotents in Banach Algebras
%J Canadian mathematical bulletin
%D 1988
%P 448-451
%V 31
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1988-065-4/
%R 10.4153/CMB-1988-065-4
%F 10_4153_CMB_1988_065_4

Cité par Sources :