TY  - JOUR
AU  - Wermuth, Edgar M. E.
TI  - A remark on commuting operator exponentials
JO  - Proceedings of the American Mathematical Society
VL  - 125
SN  - 0002-9939
CY  - Providence, RI
PB  - Soc.
M1  - FZJ-2015-01641
SP  - 1685-1688
PY  - 1997
AB  - In a previous paper the author proved that for square matrices with algebraic entries exp$(A)$exp$(B)=$exp$(B)$exp$(A)$ if and only if $AB=BA$. This result is extended here to bounded operators on an arbitrary Banach space. - See more at: http://www.ams.org/journals/proc/1997-125-06/S0002-9939-97-03643-5/#Abstract
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:A1997XD38000016
DO  - DOI:10.1090/S0002-9939-97-03643-5
UR  - https://juser.fz-juelich.de/record/188181
ER  -