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The Atiyah-Patodi-Singer mod k index theorem for Dirac operators over C\(^*\)-algebras

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Abstract

In this paper, we establish a noncommutative refinement for the \({\mathbb {Z}}/k{\mathbb {Z}}\)-index formula of Atiyah-Patodi-Singer (Math. Proc. Cambridge Philos. Soc. 79, 71-99 (1976)) in the case of \(\text {Spin}^{\text {c}}\) Dirac operators.

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References

  1. Aparicio, M.P.G., Julg, P., Valette, A.: The Baum-connes Conjecture: An Extended Survey. In: Advances in noncommutative geometry, Springer, Berlin (2019). arXiv:1905.10081

  2. Antonini, P., Azzali, S., Skandalis, G.: Flat bundles, von Neumann algebras and K-theory with R\(/\)Z-coefficients. J. K-Theory 13, 275–303 (2014)

    Article  MathSciNet  Google Scholar 

  3. Atiyah, M.F., Patodi, V.K., Singer, I.M.: Spectral asymmetry and Riemannian geometry-II. Math. Proc. Cambridge Philos. Soc. 78, 405–432 (1975)

    Article  MathSciNet  Google Scholar 

  4. Atiyah, M.F., Patodi, V.K., Singer, I.M.: Spectral asymmetry and Riemannian geometry-III. Math. Proc. Cambridge Philos. Soc. 79, 71–99 (1976)

    Article  MathSciNet  Google Scholar 

  5. Basu, D.: K-Theory with R/Z Coefficients and von Neumann Algebras. K-Theory 36, 327–343 (2005)

    Article  MathSciNet  Google Scholar 

  6. Baum, P., Douglas, R.G.: K-homology and index theory, in: Proc. Sympos. Pure Appl. Math., Amer. Math. Soc., vol. 38, pp. 117–173. Providence, RI (1982)

  7. Blackadar, B.: K-theory for Operator Algebras. In: Mathematical Sciences Research Institute Publications, vol. 5. Springer, New York (1986)

    Book  Google Scholar 

  8. Deeley, R.J.: R/Z-valued index theory via geometric K-homology. Münster J. of Math. 7, 697–729 (2014)

    MathSciNet  MATH  Google Scholar 

  9. Karoubi, M.: K-theory: An Introduction / Max Karoubi. Springer, Berlin, New York (1978)

    Book  Google Scholar 

  10. Leichtnam, E., Piazza, P.: Dirac index classes and the noncommutative spectral flow. J. Funct. Anal. 200, 348–400 (2003)

    Article  MathSciNet  Google Scholar 

  11. Phillips, N.C.: The Toeplitz operator proof of non-commutative Bott periodicity. J. Austral. Math. Soc. Ser. A 53, 229–251 (1992)

    Article  MathSciNet  Google Scholar 

  12. Rosenberg, J.: \(C^*\)-Algebras, Positive Scalar Curvature and the Novikov Conjecture. Publ. Math. IHES 58, 197–212 (1983)

    Article  MathSciNet  Google Scholar 

  13. Schick, T.: Index theory and the Baum-Connes conjecture, in: Geometry Seminars, Univ. Stud. Bologna, Bologna, 231–280 (2001–2004) arXiv:1608.04226

  14. Schick, T.: \(L^2\)-index, KK-theory, and connections. New York J. Math. 11, 387–443 (2005)

    MathSciNet  MATH  Google Scholar 

  15. Schick, T., Wraith, D.: Non-negative versus positive scalar curvature. J. Math Pure Appl. 146, 218–232 (2021)

    Article  MathSciNet  Google Scholar 

  16. Wahl, C.: On the noncommutative spectral flow. J. Ramanujan Math. Soc. 22, 135–187 (2007). arXiv:math/0602110

    MathSciNet  MATH  Google Scholar 

  17. Wahl, C.: Product formula for Atiyah-Patodi-Singer index classes and higher signatures. J. K-Theory 6, 285–337 (2010)

    Article  MathSciNet  Google Scholar 

  18. Walter, M.: Equivariant geometric K-homology with coefficients, Diplomarbeit University of Göttingen (2010)

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Acknowledgements

The author is grateful to the referees for valuable comments and suggestions.

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Correspondence to Adnane Elmrabty.

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Communicated by Gerald Teschl.

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Elmrabty, A. The Atiyah-Patodi-Singer mod k index theorem for Dirac operators over C\(^*\)-algebras. Monatsh Math 199, 85–96 (2022). https://doi.org/10.1007/s00605-022-01745-7

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  • DOI: https://doi.org/10.1007/s00605-022-01745-7

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