Erik Christensen
Associate professor emeritus
Department of Mathematical Sciences
Universitetsparken 5, 2100 København Ø, 04 Matematik E, Building: 04-0-18
- 1982
- 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
- 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
- 1981
- 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
- 1980
- 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
- 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
- 1979
- 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
- 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
- 1978
- 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
- 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
- 1977
- 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
- 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
- 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
- 1975
- 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
- 1972
- 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
ID: 4394
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144
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The block Schur product is a Hadamard product
Research output: Contribution to journal › Journal article › Research › peer-review
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82
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On the complete boundedness of the Schur block product
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26
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Decompositions of block schur products
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