Des conditions simples sur les opérateurs positifs A et K assurent que A s'écrit comme une série dans l'orbite unitaire de K.
Some simple conditions on positive operators A and K ensure that A can be written as a series in the unitary orbit of K.
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@article{CRMATH_2014__352_5_435_0, author = {Lee, Eun-Young and Bourin, Jean-Christophe}, title = {Sums of unitarily equivalent positive operators}, journal = {Comptes Rendus. Math\'ematique}, pages = {435--439}, publisher = {Elsevier}, volume = {352}, number = {5}, year = {2014}, doi = {10.1016/j.crma.2014.03.012}, language = {en}, url = {http://www.numdam.org/articles/10.1016/j.crma.2014.03.012/} }
TY - JOUR AU - Lee, Eun-Young AU - Bourin, Jean-Christophe TI - Sums of unitarily equivalent positive operators JO - Comptes Rendus. Mathématique PY - 2014 SP - 435 EP - 439 VL - 352 IS - 5 PB - Elsevier UR - http://www.numdam.org/articles/10.1016/j.crma.2014.03.012/ DO - 10.1016/j.crma.2014.03.012 LA - en ID - CRMATH_2014__352_5_435_0 ER -
%0 Journal Article %A Lee, Eun-Young %A Bourin, Jean-Christophe %T Sums of unitarily equivalent positive operators %J Comptes Rendus. Mathématique %D 2014 %P 435-439 %V 352 %N 5 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2014.03.012/ %R 10.1016/j.crma.2014.03.012 %G en %F CRMATH_2014__352_5_435_0
Lee, Eun-Young; Bourin, Jean-Christophe. Sums of unitarily equivalent positive operators. Comptes Rendus. Mathématique, Tome 352 (2014) no. 5, pp. 435-439. doi : 10.1016/j.crma.2014.03.012. http://www.numdam.org/articles/10.1016/j.crma.2014.03.012/
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