Kjeld Bagger Laursen

Kjeld Bagger Laursen

Emeritus

ORCID: 0000-0002-5251-245X

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  1. Published

    Tensor products of Banach algebras with involution

    Laursen, Kjeld Bagger, 1969, In: Transactions of the American Mathematical Society. 136, p. 467-487

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

  2. Published

    Symmetry of generalized group algebras

    Laursen, Kjeld Bagger, 1974, In: Proceedings of the American Mathematical Society. p. 318-322

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

  3. Published

    Spectral Subspaces and Automatic Continuity

    Laursen, Kjeld Bagger, 1991, København: Eget forlag. 38 p.

    Research output: Book/Report › Doctoral thesis › Research

  4. Published

    Some remarks on the surjectivity spectrum of linear operators

    Laursen, Kjeld Bagger & Vrbova, P., 1989, In: Czechoslovak Mathematical Journal. 39, 114

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

  5. Some remarks on automatic continuity

    Laursen, Kjeld Bagger, 1976, Springer Lecture Notes in Mathematics, vol. 512. Springer, Vol. 512. p. 96-108

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

  6. Published

    Reforming University Studies: How Well Does New Legislation Modify Entrenched Behaviour?

    Laursen, Kjeld Bagger & Horst, Sebastian, 2009, University Science and Mathematics Education in Transition. Skovsmose, O., Valero, P. & Christensen, O. R. (eds.). Springer Science+Business Media, p. 223-239 17 p.

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

  7. Published

    Prime ideals and automatic continuity in algebras of differentiable functions

    Laursen, Kjeld Bagger, 1980, In: Journal of Functional Analysis. 38, p. 16-24

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

  8. Published

    Operators with tacked spectrum

    Laursen, Kjeld Bagger & Mbekhta, M., 1997, In: Mathematical Proceedings of the Royal Irish Academy. 97, p. 19-30

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

  9. Published

    Operators with finite chain length and the ergodic theorem

    Laursen, Kjeld Bagger & Mbekhta, M., 1995, In: Proceedings of the American Mathematical Society. 123, p. 3443-3448

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

  10. Published

    Operators with finite ascent

    Laursen, Kjeld Bagger, 1992, In: Pacific Journal of Mathematics. 152, p. 323-336

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

  11. Published

    On discontinuous homomorphisms of L1(G)

    Laursen, Kjeld Bagger, 1972, In: Mathematica Scandinavica. 30, p. 263-266

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

  12. Published

    On analytic solutions of the equation (T-lambda) f(lambda) = x

    Laursen, Kjeld Bagger & Neumann, M. M., 1994, In: Seminar Notes in Functional Analysis. p. 256-265

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

  13. Published

    On Riesz theory of multipliers in commutative Banach algebras

    Laursen, Kjeld Bagger & Aiena, P., 1996, In: Mathematical Proceedings of the Royal Irish Academy. 96A, p. 184-193

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

  14. Published

    Om funktionalligninger

    Laursen, Kjeld Bagger, 1993, Matematiske Ideer. København: Matematiklærerforeningen, p. 259

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

  15. Published

    Multipliers with natural local spectra on commutative Banach algebras

    Laursen, Kjeld Bagger, Neumann, M. M. & Eschmeier, J., 1996, In: Journal of Functional Analysis. 138, p. 273-294

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

  16. Published

    Multipliers with closed range on regular commutative Banach algebras

    Laursen, Kjeld Bagger & Aiena, P., 1994, In: Proceedings of the American Mathematical Society. 121, p. 1039-1048

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

  17. Published

    Multipliers of radical Banach algebras of power series

    Laursen, Kjeld Bagger, Bade, W. G. & Dales, H. G., 1984, In: Memoirs of the American Mathematical Society. 49, 303

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

  18. Published

    Multipliers and local spectral theory

    Laursen, Kjeld Bagger, 1994, Functional Analysis and Operator Theory. Warszawa: Banach Center, Polish Academy of Scienc., p. 223-236 (Banach Center Publications, Vol. 30).

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

  19. Published

    Midtvejsevaluering af "Naturvidenskab for alle - Naturvidenskabeligt grundforløb" under DASG, Institut for Naturfagenes Didaktik, Københavns Universitet.

    Holm, Christine, Laursen, Kjeld Bagger & Madsen, Lene Møller, 2007

    Research output: Book/Report › Report › Communication

  20. Published

    Midtvejsevaluering af "Dataopsamling og databehandling" under DASG, Institut for Naturfagenes Didaktik, Københavns Universitet.

    Madsen, Lene Møller, Holm, Christine & Laursen, Kjeld Bagger, 2007

    Research output: Book/Report › Report › Communication

  21. Published

    Mergelyan's theorem for vector-valued functions with an application to slice algebras

    Laursen, Kjeld Bagger, Briem, E. & Pedersen, N. W., 1970, In: Studia Mathematica. 25

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

  22. Published

    Maximal two-sided ideals in tensor products of Banach algebras

    Laursen, Kjeld Bagger, 1970, In: Proceedings of the American Mathematical Society. 25, p. 475-480

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

  23. Published

    Matematik og naturfagene i Ny Nordisk Skole

    Horst, Sebastian, Dolin, Jens, Laursen, Kjeld Bagger, Andersen, H. M., Goldbech, O. & Kjeldsen, Tinne Hoff, 2012, In: MONA: Matematik og Naturfagsdidaktik. 4, p. 68-84 17 p.

    Research output: Contribution to journal › Journal article › Research

  24. Published

    Local spectral theory and spectral inclusions

    Laursen, Kjeld Bagger & Neumann, M. M., 1994, In: Glasgow Mathematical Journal. 26, p. 331-343

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

  25. Published

    Local spectral properties of multipliers on Banach algebras

    Laursen, Kjeld Bagger & Neumann, M. M., 1992, In: Archiv der Mathematik. 58, p. 368-375

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

  26. Published

    Local spectral properties of commutators

    Laursen, Kjeld Bagger, Miller, V. G. & Neumann, M. M., 1995, In: Proceedings of the Edinburgh Mathematical Society. 38, 2, p. 313-329

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

  27. Published

    Lifting matrix units in C*-algebras II

    Laursen, Kjeld Bagger & Sinclair, A. M., 1975, In: Mathematica Scandinavica. 37, p. 167-172

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

  28. Published

    Kan man kun differentiere på én måde?

    Laursen, Kjeld Bagger, 1979, In: Normat - Nordisk Matematisk Tidsskrift. 27, p. 107-111

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

  29. Published

    It takes two, but sometimes one will do

    Laursen, Kjeld Bagger, 1998, Rendiconti del Circolo Matematico di Palermo. Palermo, Sicilien, Italien: Circolo Matematico di Palermo, Vol. 56. p. 49-57

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

  30. Published

    Introduction to Banach Algebras, Operators, and Harmonic Analysis

    Laursen, Kjeld Bagger, Dales, H. G., Aiena, P., Eschmeier, J. & Willis, G. A., 2003, Introduction to Banach Algebras, Operators, and Harmonic Analysis. Cambridge, p. 199-264 (London Mathematical Society Student Texts, Vol. 57).

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

  31. Published

    Intertwiners and automatic continuity

    Laursen, Kjeld Bagger & Vrbova, P., 1991, In: Journal of the London Mathematical Society. 43, 2, p. 149-155

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

  32. Published

    Ideal structure of radical sequence algebras

    Laursen, Kjeld Bagger, Bade, W. G. & Dales, H. G., 1983, Springer Lecture Notes in Mathematics. Springer, Vol. 975. p. 248-257

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

  33. Published

    Ideal structure in generalized group algebras

    Laursen, Kjeld Bagger, 1969, In: Pacific Journal of Mathematics. 30, p. 155-174

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

  34. Published

    Gymnasiets drenge - matematikfagets drenge: Rapport fra et FoU-projekt - 126152

    Bacher, C., Iversen, S. M., Laursen, Kjeld Bagger & Ulriksen, Lars, 29 Jun 2011, 40 p.

    Research output: Book/Report › Report › Research

  35. Published

    Forskningsbaseret undervisning - realiteter og potentialer: Proceedings fra d. 10. majkonference i naturvidenskabsdidaktik, København 18.-19. maj 2010

    Christiansen, Frederik Voetmann (ed.), Horst, Sebastian (ed.), Holm, Christine (ed.) & Laursen, Kjeld Bagger (ed.), 2011, Department of Science Education, University of Copenhagen. 150 p. (IND's Skriftserie, Vol. 21).

    Research output: Book/Report › Anthology › Communication

  36. Published

    Essential spectra through local spectral theory

    Laursen, Kjeld Bagger, 1997, In: Proceedings of the American Mathematical Society. 125, p. 1425-1434

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

  37. Published

    Erfaringsopsamling fra skoleledelserne under DASG, Institut for Naturfagenes Didaktik, Københavns Universitet.

    Laursen, Kjeld Bagger, Holm, Christine & Madsen, Lene Møller, 2007

    Research output: Book/Report › Report › Communication

  38. Published

    Equivalence of algebra norms on L1(G)

    Laursen, Kjeld Bagger, 1972, In: Proceedings of the American Mathematical Society. 34, p. 316

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

  39. Published

    Epimorphisms of C*-algebras

    Laursen, Kjeld Bagger, 1984, Functional Analysis: Surveys and Recent Results III. Bierstedt & Fuchssteiner (eds.). North-Holland

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

  40. Published

    Dovne drenge eller dødbringende matematik?

    Bacher, C., Laursen, Kjeld Bagger, Iversen, S. M. & Ulriksen, Lars, 10 Mar 2012, In: MONA: Matematik og Naturfagsdidaktik. 2012, 1, p. 23-45 23 p.

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

  41. Published

    Divisible subspaces and problems of automatic continuity

    Laursen, Kjeld Bagger, Bade, W. G. & Curtis, P. C., 1980, In: Studia Mathematica. 68, p. 159-186

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

  42. Published

    Decomposable operators and automatic continuity

    Laursen, Kjeld Bagger & Neumann, M. M., 1986, In: Journal of Operator Theory. 15, p. 33-51

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

  43. Published

    Decomposable multipliers and applications to harmonic analysis

    Laursen, Kjeld Bagger & Neumann, M. M., 1992, In: Studia Mathematica. 101, 2, p. 193-214

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

  44. Published

    Continuity of linear maps from C*-algebras

    Laursen, Kjeld Bagger, 1976, In: Pacific Journal of Mathematics. 61, p. 483-491

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

  45. Published

    Continuity of homomorphisms from C*-algebras into commutative Banach algebras

    Laursen, Kjeld Bagger, 1987, In: Journal of the London Mathematical Society. 36, 2, p. 165-175

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

  46. Published

    Closed range multipliers and generalized inverses

    Laursen, Kjeld Bagger & Mbekhta, M., 1993, In: Studia Mathematica. 107, p. 127-135

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

  47. Published

    Central factorization in C*-algebras and its use in automatic continuity

    Laursen, Kjeld Bagger, 1984, In: Contemporary Mathematics. 32

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

  48. Published

    Central factorization in C*-algebras and continuity of homomorphisms

    Laursen, Kjeld Bagger, 1983, In: Journal of the London Mathematical Society. 28, 2, p. 123-130

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

  49. Published

    Browder spectrum through local spectral theory

    Laursen, Kjeld Bagger, 1998, Proceedings of the International Conference on Banach Algebras ba97. Berlin: De Gruyter, p. 287-301

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

  50. Published

    Automatic continuity of intertwining linear operators on Banach spaces

    Laursen, Kjeld Bagger & Neumann, M. M., 1991, In: Rendiconti del Circolo Matematico di Palermo. 40, 3, p. 325-341

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

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