Trivialization of 𝒞(X)-algebras with strongly self-absorbing fibres
[Trivialisation de 𝒞(X)-algèbres à fibres fortement auto-absorbantes]
Dadarlat, Marius ; Winter, Wilhelm
Bulletin de la Société Mathématique de France, Tome 136 (2008), p. 575-606 / Harvested from Numdam

Soit A une 𝒞(X)-algèbre séparable unital dont chaque fibre est isomorphe à une même C * -algèbre 𝒟 K 1 -injective et fortement auto-absorbante. Nous montrons que si l’espace compact et Hausdorff X est de dimension finie, alors A et 𝒞(X)𝒟 sont isomorphes en tant que 𝒞(X)-algèbres. Ce resultat est connu pour ne pas s’étendre au cas des espaces de dimension infinie.

Suppose A is a separable unital 𝒞(X)-algebra each fibre of which is isomorphic to the same strongly self-absorbing and K 1 -injective C * -algebra 𝒟. We show that A and 𝒞(X)𝒟 are isomorphic as 𝒞(X)-algebras provided the compact Hausdorff space X is finite-dimensional. This statement is known not to extend to the infinite-dimensional case.

Publié le : 2008-01-01
DOI : https://doi.org/10.24033/bsmf.2567
Classification:  46L05,  47L40
Mots clés: C * -algèbre fortement auto-absorbante, équivalence unitaire asymptotique, champ continu de C * -algèbres
@article{BSMF_2008__136_4_575_0,
     author = {Dadarlat, Marius and Winter, Wilhelm},
     title = {Trivialization of $\mathcal {C}(X)$-algebras with strongly self-absorbing fibres},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     volume = {136},
     year = {2008},
     pages = {575-606},
     doi = {10.24033/bsmf.2567},
     mrnumber = {2443037},
     zbl = {1170.46051},
     language = {en},
     url = {http://dml.mathdoc.fr/item/BSMF_2008__136_4_575_0}
}
Dadarlat, Marius; Winter, Wilhelm. Trivialization of $\mathcal {C}(X)$-algebras with strongly self-absorbing fibres. Bulletin de la Société Mathématique de France, Tome 136 (2008) pp. 575-606. doi : 10.24033/bsmf.2567. http://gdmltest.u-ga.fr/item/BSMF_2008__136_4_575_0/

[1] B. Blackadar & E. Kirchberg - « Generalized inductive limits of finite-dimensional C * -algebras », Math. Ann. 307 (1997), p. 343-380. | MR 1437044 | Zbl 0874.46036

[2] E. Blanchard & E. Kirchberg - « Global Glimm halving for C * -bundles », J. Operator Theory 52 (2004), p. 385-420. | MR 2120237 | Zbl 1073.46509

[3] M. Dadarlat - « Continuous fields of C * -algebras over finite dimensional spaces », preprint, arXiv:math.OA/0611405, 2006. | MR 2555914 | Zbl 1190.46040

[4] -, « Fiberwise KK-equivalence of continuous fields of C * -algebras », preprint, arXiv:math.OA/0611408, 2006.

[5] M. Dadarlat & W. Winter - « On the KK-theory of strongly self-absorbing C * -algebras », preprint, arXiv:0704.0583, to appear in Math. Scand., 2007. | MR 2498373 | Zbl 1170.46065

[6] J. Dixmier & A. Douady - « Champs continus d’espaces hilbertiens et de C * -algèbres », Bull. Soc. Math. France 91 (1963), p. 227-284. | Numdam | MR 163182 | Zbl 0127.33102

[7] I. Hirshberg, M. Rørdam & W. Winter - « 𝒞 0 (X)-algebras, stability and strongly self-absorbing C * -algebras », Math. Ann. 339 (2007), p. 695-732. | MR 2336064 | Zbl 1128.46020

[8] W. Hurewicz & H. Wallman - Dimension Theory, Princeton Mathematical Series, v. 4, Princeton University Press, 1941. | MR 6493 | Zbl 0060.39808

[9] G. G. Kasparov - « Equivariant KK-theory and the Novikov conjecture », Invent. Math. 91 (1988), p. 147-201. | MR 918241 | Zbl 0647.46053

[10] E. Kirchberg - « Central sequences in C * -algebras and strongly purely infinite algebras », in Operator Algebras: The Abel Symposium 2004, Abel Symp., vol. 1, Springer, 2006, p. 175-231. | MR 2265050 | Zbl 1118.46054

[11] M. Rørdam - Classification of nuclear C * -algebras, Encyclopaedia Math. Sci, vol. 126, Springer, 2002. | MR 1878882 | Zbl 0985.00012

[12] A. S. Toms & W. Winter - « Strongly self-absorbing C * -algebras », Trans. Amer. Math. Soc. 359 (2007), p. 3999-4029. | MR 2302521 | Zbl 1120.46046

[13] W. Winter - « Localizing the Elliott conjecture at strongly self-absorbing C * -algebras », preprint, arXiv:0708.0283, 2007. | MR 2302521

[14] -, « Simple C * -algebras with locally finite decomposition rank », J. Funct. Anal. 243 (2007), p. 394-425. | MR 2289694 | Zbl 1121.46047