Projects

Topics in Mathematics Münster

Research Interests

Research Interests

$\bullet$ Operatoralgebren und nichtkommutative Geometrie

Recent Publications

Recent Publications of Prof. Dr. Siegfried Echterhoff

$\bullet $ Alcides Buss and Siegfried Echterhoff. Deformation of fell bundles. arXiv e-prints, February 2024. arXiv:2402.04369.

$\bullet $ Siegfried Echterhoff and Mikael Rørdam. Inclusions of $C^*$-algebras arising from fixed-point algebras. Groups Geom. Dyn., 18(1):127–145, February 2024. doi:10.4171/ggd/743.

$\bullet $ Alcides Buss and Siegfried Echterhoff. A new approach to (exotic) deformation of $\mathrm C^*$-algebras via coactions. arXiv e-prints, May 2023. arXiv:2305.09997.

$\bullet $ Sayan Chakraborty, Siegfried Echterhoff, Julian Kranz, and Shintaro Nishikawa. K-theory of noncommutative bernoulli shifts. Mathematische Annalen, 388(3):2671–2703, February 2023. doi:10.1007/s00208-023-02587-w.

$\bullet $ Sayan Chakraborty, Siegfried Echterhoff, Julian Kranz, and Shintaro Nishikawa. $k$-theory of non-commutative Bernoulli shifts. arXiv e-prints, October 2022. arXiv:2210.09209.

$\bullet $ Alcides Buss, Siegfried Echterhoff, and Rufus Willett. Erratum to: "the minimal exact crossed product". Doc. Math., 26:1629–1632, January 2021. doi:10.25537/dm.2021v26.1629-1632.

$\bullet $ Massoud Amini, Siegfried Echterhoff, and Hamed Nikpey. $C^\ast $-operator systems and crossed products. J. Math. Anal. Appl., 491(1):124308, November 2020. doi:10.1016/j.jmaa.2020.124308.

$\bullet $ Alcides Buss, Siegfried Echterhoff, and Rufus Willett. The maximal injective crossed product. Ergod. Theor. Dyn. Syst., 40(11):2995–3014, November 2020. doi:10.1017/etds.2019.25.

$\bullet $ Alcides Buss, Siegfried Echterhoff, and Rufus Willett. Injectivity, crossed products, and amenable group actions. In $K$-theory in algebra, analysis and topology, volume 749 of Contemp. Math., pages 105–137. May 2020. doi:10.1090/conm/749/15069.

$\bullet $ Alcides Buss, Siegfried Echterhoff, and Rufus Willett. Amenability and weak containment for actions of locally compact groups on $C^*$-algebras. arXiv e-prints, March 2020. arXiv:2003.03469.