Erik Christensen

Erik Christensen

Associate professor emeritus

ORCID: 0000-0003-1754-0778

Publication year:
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26 - 50 out of 64Page size: 25
  1. 1989
  2. Published

    A survey of completely bounded operators

    Christensen, Erik & Sinclair, A. M., Sep 1989, In: Bulletin of the London Mathematical Society. 21, 5, p. 417-448 32 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. 1994
  4. Published

    On von Neumann Algebras which are complemented Subspaces of B(H)

    Christensen, Erik & Sinclair, A. M., 1994, In: Journal of Functional Analysis. 122, p. 91-102

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Universally bounded operators on von Neumann algebras of type II*U1

    Christensen, Erik, 1994, Algebraic Methods in Operator Theory. Boston: Birkhäuser Verlag, p. 195-204

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  6. 1995
  7. Published

    Module mappings into von Neumann algebras and injectivity

    Christensen, Erik & Sinclair, A. M., 1995, In: Proceedings of the London Mathematical Society. 71, p. 618-640

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. 1997
  9. Published

    A cohomological characterization of approximately finite dimension von Neumann algebras

    Christensen, Erik, 1997, Operator Algebras and quantum field theory. Rom: International Press, p. 323-328

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  10. Published

    On the cohomology groups of cerain finite von Neumann algebras

    Christensen, Erik, Pop, F. & Sinclair, A. M., 1997, In: Mathematische Annalen. 307, p. 71-92

    Research output: Contribution to journal › Journal article › Research › peer-review

  11. Published

    Two generalizations of the Gleason-Kahane-Z̀elazko theorem

    Christensen, Erik, Jan 1997, In: Pacific Journal of Mathematics. 177, 1, p. 27-32 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. 1998
  13. Published

    On invertibility preserving linear mappings, simultaneous triangularization and Property L.

    Christensen, Erik, 1998, In: Linear Algebra and Its Applications. 301, p. 153-170

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. 2001
  15. Published

    Finite von Neumann algebra factors with property Gamma

    Christensen, Erik, 2001, In: Journal of Functional Analysis. 186, p. 366-380

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Konvekse mængder

    Christensen, Erik, 2001, 106 p.

    Research output: Book/Report › Book › Communication

  17. 2003
  18. Published

    Hochschild cohomology of factors with property Gamma

    Christensen, Erik, Sinclair, A. M. & Smith, R. R., 2003, In: Annals of Mathematics. 158, 2, p. 597-621

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    On some problems studied by R.V. Kadison

    Christensen, Erik, 2003, In: Acta Mathematica Sinica. English series. 19, p. 523-534

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Property Gamma factors and the Hochschild cohomology problem

    Christensen, Erik, Pop, F., Sinclair, A. M. & Smith, R. R., 2003, In: Proceedings of the National Academy of Science of the United States of America. 100, p. 3865-3869

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. 2004
  22. Published

    Metrics on group C*-algebras and a non-commutative Arzelà-Ascoli Theorem

    Antonescu, C. & Christensen, Erik, 2004, In: Journal of Functional Analysis. 214, p. 247-259

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. 2006
  24. Published

    Spectral triples for AF C*-algebras and metrics on the Cantor set

    Christensen, Erik, 2006, In: Journal of Operator Theory. 56, p. 17-46

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. 2007
  26. Published

    Sums of two-dimensional spectral triples

    Christensen, Erik & Ivan, C., 2007, In: Mathematica Scandinavica. 100, 1, p. 35-60 26 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. 2008
  28. Published

    Dirac operators and spectral triples for some fractal sets built on curves

    Christensen, Erik, Ivan, C. & Lapidus, M. L., 2008, In: Advances in Mathematics. 217, 1, p. 42 - 78 37 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  29. 2009
  30. Published

    Extensions and degeneration of spectral triples

    Christensen, Erik & Ivan, C., 2009, In: Communications in Mathematical Physics. 285, 3, p. 925-955 31 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  31. 2010
  32. Published

    Perturbations of C*-algebraic Invariants

    Christensen, Erik, Sinclair, A. M., Smith, R. R. & White, S., 2010, In: Geometric and Functional Analysis. 20, 2, p. 368 - 397 30 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. Published

    The spatial isomorphism problem for close separable nuclear C*-algebras

    Christensen, Erik, Sinclair, A. M., Smith, R. R., White, S. A. & Winter, W., 2010, In: Proceedings of the National Academy of Science of the United States of America. 107, 2, p. 587 - 591 5 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  34. 2012
  35. Published

    Perturbations of nuclear C*-algebras.

    Christensen, Erik, Sinclair, A. M., White, S., Smith, R. R. & Winter, W., 2012, In: Acta Mathematica. 208, p. 93-150 58 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  36. Published

    Spectral triples and the geometry of fractals

    Christensen, Erik, Ivan, C. & Schroe, E., 2012, In: Journal of Noncommutative Geometry. 6, p. 249 - 274 26 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Type II1 factors satisfying the spatial isomorphism conjecture.

    Cameron, J., Christensen, Erik, Sinclair, A. M., Smith, R. R., White, S. & Wiggins, A. D., 2012, In: Proceedings of the National Academy of Sciences USA (PNAS). 109, 5, p. 20338 - 20343 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  38. 2013
  39. Published

    A Remark on the Similarity and Perturbation Problems

    Cameron, J., Christensen, Erik, Sinclair, A. M., Smith, R. R., White, S. & Wiggins, A. D., 2013, In: Mathematical Reports of the Academy of Science. 35, 2

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Published

    C*-algebras nearly contained in a type I C*-algebra

    Christensen, Erik, Sinclair, A. M., White, S. A. & Smith, R. R., Jan 2013, In: Canadian Journal of Mathematics. 65, p. 52-65 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

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