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. 1972
  2. Published

    Non-commutative integration for monotone sequentially closed C∗ algebras

    Christensen, Erik, 1972, In: Mathematica Scandinavica. 31, p. 171-190 20 p.

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

  3. 1975
  4. Published

    Perturbations of type I von neumann algebras

    Christensen, Erik, Jan 1975, In: Journal of the London Mathematical Society. s2-9, 3, p. 395-405 11 p.

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

  5. 1977
  6. Published

    Perturbations of operator algebras II.

    Christensen, Erik, 1977, In: Indiana University Mathematics Journal. 26, p. 891 - 904 14 p.

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

  7. Published

    Perturbation of operator algebras

    Christensen, Erik, Feb 1977, In: Inventiones Mathematicae. 43, 1, p. 1-13 13 p.

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

  8. Published

    Derivations of nest algebras

    Christensen, Erik, Jun 1977, In: Mathematische Annalen. 229, 2, p. 155-161 7 p.

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

  9. 1978
  10. Published

    Extension of derivations

    Christensen, Erik, Feb 1978, In: Journal of Functional Analysis. 27, 2, p. 234-247 14 p.

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

  11. Published

    Generators of semigroups of completely positive maps

    Christensen, Erik, Jun 1978, In: Communications in Mathematical Physics. 62, 2, p. 167-171 5 p.

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

  12. 1979
  13. Published

    Cohomology of operator algebras and quantum dynamical semigroups.

    Christensen, Erik & Evans , D. E., 1979, In: Journal of the London Mathematical Society. 20, 2, p. 358-368 11 p.

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

  14. Published

    Subalgebras of a finite algebra

    Christensen, Erik, Feb 1979, In: Mathematische Annalen. 243, 1, p. 17-29 13 p.

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

  15. 1980
  16. Published

    Commutants of nest algebras modulo the compact operators

    Christensen, Erik & Peligrad, C., Feb 1980, In: Inventiones Mathematicae. 56, 1, p. 113-116 4 p.

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

  17. Published

    Near inclusions of C*-algebras

    Christensen, Erik, Jul 1980, In: Acta Mathematica. 144, 1, p. 249-265 17 p.

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

  18. 1981
  19. Published

    On non-selfadjoint representations of C*-algebras

    Christensen, Erik, 1981, In: American Journal of Mathematics. 103, p. 817 - 833 17 p.

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

  20. 1982
  21. Published

    Derivations and their relation to perturbations of operator algebras

    Christensen, Erik, 1982, American Mathematical Society Symposia . Vol. 38. p. 261 - 273 13 p.

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

  22. Published

    Extensions of derivations II

    Christensen, Erik, 1982, In: Mathematica Scandinavica. 50, p. 111 -122 12 p.

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

  23. Published

    Measures on projections and physical states

    Christensen, Erik, Dec 1982, In: Communications in Mathematical Physics. 86, 4, p. 529-538 10 p.

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

  24. 1983
  25. Published

    Completely order isomorphic and close C-algebras need not BE, *-isomorphic

    Choi, M. D. & Christensen, Erik, Nov 1983, In: Bulletin of the London Mathematical Society. 15, 6, p. 604-610 7 p.

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

  26. 1984
  27. Published

    Pertrurbationer af operatoralgebraer

    Christensen, Erik, 1984, 50 p.

    Research output: Book/Report › Book › Research › peer-review

  28. Published

    Properly infinite aw*-algebras are monotone sequentially complete

    Christensen, Erik & Pedersen, G. K., Jul 1984, In: Bulletin of the London Mathematical Society. 16, 4, p. 407-410 4 p.

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

  29. 1986
  30. Published

    Similarities of II_1 factors with property Gamma

    Christensen, Erik, 1986, In: Journal of Operator Theory. 15, 2, p. 281 - 288 8 p.

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

  31. 1987
  32. Published

    The algebra of generalized compacts associated with a von Neumann algebra

    Christensen, Erik, 1987, Operator Theory: Advances and applications.. Birkhäuser Verlag, Vol. 24. p. 51 - 58 8 p.

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

  33. Published

    Representations of completely bounded multilinear operators

    Christensen, Erik & Sinclair, A. M., May 1987, In: Journal of Functional Analysis. 72, 1, p. 151-181 31 p.

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

  34. Published

    Completely bounded multilinear maps and C*-algebraic cohomology

    Christensen, Erik, Effros, E. G. & Sinclair, A., Jun 1987, In: Inventiones Mathematicae. 90, 2, p. 279-296 18 p.

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

  35. 1988
  36. Published

    Close operator algebras

    Christensen, Erik, 1988, In: NATO ASI Series C Mathematical and Physical Sciences - Advanced Study Institute. 247 , p. 537 - 556 20 p.

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

  37. 1989
  38. Published

    On the vanishing of Hn(A, A*) for certain C*-algebras

    Christensen, Erik & Sinclair, A. M., Mar 1989, In: Pacific Journal of Mathematics. 137, 1, p. 55-63 9 p.

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

  39. Published

    Completely bounded isomorphisms of injective von neumann algebras

    Christensen, Erik & Sinclair, A. M., Jun 1989, In: Proceedings of the Edinburgh Mathematical Society. 32, 2, p. 317-327 11 p.

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

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