Erik Christensen

Erik Christensen

Associate professor emeritus

ORCID: 0000-0003-1754-0778

Publication year:
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1 - 25 out of 63Page size: 25
  1. 2024
  2. Published

    Some points of view on Grothendieck's inequalities

    Christensen, Erik, 2024, In: Linear Algebra and Its Applications. 691, p. 196-215 20 p.

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

  3. Published

    Unique matrix factorizations associated to bilinear forms and Schur multipliers

    Christensen, Erik, 2024, In: Linear Algebra and Its Applications. 688, p. 215-231

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

  4. 2023
  5. Published

    Bilinear forms, Schur multipliers, complete boundedness and duality

    Christensen, Erik, 2023, In: Mathematica Scandinavica. 129, 3, p. 543-569

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

  6. Published

    Minimal Stinespring Representations of Operator Valued Multilinear Maps

    Christensen, Erik, 2023, In: Journal of Operator Theory. 89, 2, p. 587-601 15 p.

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

  7. 2020
  8. Published

    Decompositions of block schur products

    Christensen, Erik, 2020, In: Journal of Operator Theory. 84, 1, p. 139-152

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

  9. Published

    The block Schur product is a Hadamard product

    Christensen, Erik, 2020, In: Mathematica Scandinavica. 126, 3, p. 603-616

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

  10. 2019
  11. Published

    On the complete boundedness of the Schur block product

    Christensen, Erik, 2019, In: Proceedings of the American Mathematical Society. 147, 2, p. 523-532

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

  12. 2017
  13. Published

    Structural properties of close II1 factors

    Cameron, J., Christensen, Erik, Sinclair, A. M., Smith, R. R., White, S. & Wiggins, A. D., 2017, In: Münster Journal of Mathematics. 10, 1, p. 19-37

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

  14. 2016
  15. Published

    Commutator inequalities via Schur products

    Christensen, Erik, 2016, Operator Algebras and Applications: The Abel Symposium 2015. Carlsen, T. M., Larsen, N. S., Neshveyev, S. & Skau, C. (eds.). Springer, p. 127-143 (Abel Symposia, Vol. 12).

    Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

  16. Published

    Higher weak derivatives and reflexive algebras of operators

    Christensen, Erik, 2016, Operator Algebras and Their Applications: A Tribute to Richard V. Kadison. Doran, R. S. & Park, E. (eds.). American Mathematical Society, p. 69-83 (Contemporary Mathematics, Vol. 671).

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

  17. Published

    On weakly D-differentiable operators

    Christensen, Erik, 2016, In: Expositiones Mathematicae. 34, 1, p. 27–42

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

  18. 2014
  19. Published

    Kadison-Kastler stable factors

    Cameron, J., Christensen, Erik, Sinclair, A. M., Smith, R. R., White, S. A. & Wiggins, A. D., 2014, In: Duke Mathematical Journal. 163, 14, p. 2639-2686 57 p.

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

  20. Published

    Von Neumann algebras as complemented subspaces of B(H)

    Christensen, Erik & Wang, L., 2014, In: International Journal of Mathematics. 25, 9 p., 1450107.

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

  21. 2013
  22. 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

  23. 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

  24. 2012
  25. 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

  26. 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

  27. 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

  28. 2010
  29. 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

  30. 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

  31. 2009
  32. 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

  33. 2008
  34. 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

  35. 2007
  36. 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

  37. 2006
  38. 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

  39. 2004
  40. 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

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