Let X be a compact Hausdorff space and τ a topological involution on X. Let be the real algebra of all complex-valued continuous functions on X that satisfy for every . It is shown that the absolute stable rank of equals the Bass, and hence topological stable rank of .
Soit X un espace de Hausdorff et τ une involution topologique sur X. Soit lʼalgèbre réelle de toutes les fonctions continues à valeurs complexes sur X telles que pout tout . Dans un papier récent, le premier auteur de cette Note et R. Rupp ont pu calculer les rangs stables de Bass et topologique de . Nous montrons ici que le rang stable absolu de coïncide avec le rang stable de Bass, et ainsi aussi avec le rang stable topologique de . On profite de cette Note pour annoncer ainsi ce théorème de Mortini–Rupp qui va apparaître ailleurs.
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Raymond Mortini 1; Jérôme Noël 1
@article{CRMATH_2011__349_7-8_391_0, author = {Raymond Mortini and J\'er\^ome No\"el}, title = {The absolute stable rank of $ C(X,\tau )$}, journal = {Comptes Rendus. Math\'ematique}, pages = {391--394}, publisher = {Elsevier}, volume = {349}, number = {7-8}, year = {2011}, doi = {10.1016/j.crma.2011.03.004}, language = {en}, }
Raymond Mortini; Jérôme Noël. The absolute stable rank of $ C(X,\tau )$. Comptes Rendus. Mathématique, Volume 349 (2011) no. 7-8, pp. 391-394. doi : 10.1016/j.crma.2011.03.004. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2011.03.004/
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