Research areas

  1. Published

    En endemisk Hvidtjørn fra de græske bjerge

    Christensen, K., 2001, In: Dansk Dendrologisk Aarsskrift. 19, p. 5-10

    Research output: Contribution to journalJournal articleResearch

  2. Published

    Salix L. (pro parte)

    Christensen, K., 2000, Flora Nordica 1. Stockholm: Royal Swedish Academy of Sciences, p. 122-136,153-158,179-182

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  3. Published

    Materials for Flora Nordica: Typification of some Maloideae (Rosaceae) commonly cultivated in Norden

    Christensen, K., 1998, In: Nordic Journal of Botany. 18, p. 701-703

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Habitat diversity and zonality of vegetation in Sind Valley, Kashmir Himalaya

    Christensen, K. & Hassan Dar, G., 1999, In: Nature and Biosphere. 4, p. 49-71

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Lange, Johan 1999. Kulturplanternes indførselshistorie i Danmark indtil midten af 1900-tallet. 2. udgave. DSR Forlag. Frederiksberg

    Christensen, K., 1999, In: Dansk Dendrologisk Aarsskrift. 17, p. 131

    Research output: Contribution to journalReviewResearch

  6. Published

    Update of "K.I. Christensen 1998: A reanalysis of Crataegus eremitagensis C. raavadensis and schumacheri (Rosaceae)

    Christensen, K., 1998, København. 2 p.

    Research output: Book/ReportBookResearch

  7. Published

    Bestemmelsesnøgle til Taks (Taxus) i Danmark

    Christensen, K., 1998, In: Meddelelser fra Atlas Flora Danica. 4, p. 1-2

    Research output: Contribution to journalJournal articleResearch

  8. Published

    Dansk Dendrologisk Årsskrift i 50 år: Artikler publiceret i bínd 1,1 (1950) til 17 (1999)

    Christensen, K., 2000, In: Dansk Dendrologisk Aarsskrift. 18, p. 50-73

    Research output: Contribution to journalJournal articleResearch

  9. Published

    Crataegus L. (Rosaceae)

    Christensen, K., 1998, Standardliste der Farn- und Blütenpflanzen Deutschlands. Stuttgart (Hohenheim): Ulmer, p. 158-161

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  10. Museums and science centres for health: from scientific literacy to health promotion

    Christensen, J. H., Bønnelycke, J., Mygind, L. & Bentsen, P., 2016, In: Museum Management and Curatorship. 31, 1, p. 17-47 31 p.

    Research output: Contribution to journalReviewResearchpeer-review

  11. Published

    Activating the ‘peerness’ of youth leaders in a community sport programme through techne and phronesis

    Christensen, J. H., Evans, Adam B., Klinker, C. D., Staal, M. T., Bentsen, P. & Nielsen, Glen, 2022, In: Health Promotion International. 37, 6, 11 p., daac141.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Danekræ - et nyt begreb i dansk museumslovgivning. Med engelsk oversættelse Danekræ - a new concept in Danish Museum Legislation

    Christensen, E. F. & Hald, N., 1991, In: Arkæologiske Udgravninger i Danmark. 1990, p. 7-16 10 p.

    Research output: Contribution to journalJournal articleResearch

  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 journalJournal articleResearchpeer-review

  14. 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 journalJournal articleResearchpeer-review

  15. Published

    Perturbations of operator algebras II.

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

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. 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 journalJournal articleResearchpeer-review

  17. Published

    Pertrurbationer af operatoralgebraer

    Christensen, Erik, 1984, 50 p.

    Research output: Book/ReportBookResearchpeer-review

  18. 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 journalJournal articleResearchpeer-review

  19. 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 proceedingArticle in proceedingsResearchpeer-review

  20. Published

    Extensions of derivations II

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

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. 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 journalJournal articleResearchpeer-review

  22. 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 journalJournal articleResearchpeer-review

  23. 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 journalJournal articleResearchpeer-review

  24. 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 journalJournal articleResearchpeer-review

  25. Published

    Konvekse mængder

    Christensen, Erik, 2001, 106 p.

    Research output: Book/ReportBookCommunication