Niels Grønbæk

Niels Grønbæk

Professor emeritus


  1. 2020
  2. Published

    Efteruddannelse i CAS – erfaringer fra fire år med CMU

    Bang, H. P., Grønbæk, Niels & Larsen, C. R., 5 Dec 2020, In: MONA - Matematik- og Naturfagsdidaktik. 2020, 4, p. 26-45

    Research output: Contribution to journalJournal articlepeer-review

  3. 2019
  4. Published

    Matematik B: Regningen skal betales

    Grønbæk, Niels, Winsløw, Carl & Jessen, Britta Eyrich, 5 Sep 2019, In: MONA - Matematik- og Naturfagsdidaktik. 2019, 3

    Research output: Contribution to journalComment/debate

  5. Published

    Teachers’ choices of digital approaches to upper secondary calculus

    Bang, H. P., Grønbæk, Niels & Larsen, C. R., 2019, Calculus in upper secondary and beginning university mathematics - Conference proceedings. Monaghan, J., Nardi, E. & Dreyfus, T. (eds.). Kristianssand, Norway: MatRIC, p. 67-70

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  6. 2018
  7. Published

    Diskret Matematik

    Grønbæk, Niels, Bang, H. P. & Larsen, C. R., 2018, 154 p. København : EMU - Danmarks læringsportal.

    Research output: Other contributionNet publication - Internet publicationEducation

  8. Published

    Proceedings of the Fifth ERME TOPIC CONFERENCE (ETC 5) on Mathematics Education in the Digital Age (MEDA), 5-7 September 2018, Copenhagen, Denmark

    Weigand, H. (ed.), Clark-Wilson, A. (ed.), Donevska-Todorova, A. (ed.), Faggiano, E. (ed.), Grønbæk, Niels (ed.) & Trgalova, J. (ed.), 2018, University of Copenhagen. 329 p.

    Research output: Book/ReportAnthologypeer-review

  9. 2017
  10. Published

    Matematik - et fag på anfordring

    Grønbæk, Niels, Aug 2017, In: MONA: Matematik- og Naturfagsdidaktik. 2017-3, p. 80-83

    Research output: Contribution to journalComment/debate

  11. Published

    Matematik-krise: Lærer-uddannelse skal styrkes

    Grønbæk, Niels, 26 Jan 2017, In: Berlingske Tidende. 26. januar, 1 p.

    Research output: Contribution to journalContribution to newspaper - Comment/debate

  12. Published

    Challenges in Teaching Praxis When CAS Is Used in Upper Secondary Mathematics

    Grønbæk, Niels, Larsen, C., Bang, H., Weigand, H., Lavicza, Z., Monaghan, J., Heid, M. K., Thomas, M. & Drijvers, P., 2017, Proceedings of the 13th International Congress of Mathematical Education: ICME-13. Kaiser, G. (ed.). Springer, p. 661-662 (ICME-13 Monographs).

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  13. Published

    Coaching and engaging. Developing teaching with CAS in High School

    Bang, H. P., Grønbæk, Niels & Larsen, C. R., 2017. 2 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  14. Published

    Matematikkommissionen - afrapportering

    Grønbæk, Niels, Rasmussen, A., Skott, C. K. S., Bang-Jensen, J. B., Fajstrup, L., Schou, M. H., Christensen, M., Lumholt, M., Kjærup, R., Jørgensen, Solvejg, Hansen, S. L. & Markvorsen, S., 2017, Undervisningsministeriet. 47 p.

    Research output: Book/ReportReport

  15. Published

    Out- and insourcing, an analysis model for use of instrumented techniques

    Bang, H. P., Grønbæk, Niels & Larsen, C. R., 2017, Proceedings of the Tenth Congress of the European Society for Research in Mathematics Education. Dooley, T. & Gueudet, G. (eds.). Dublin: DCU Institute of Education and ERME, 8 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  16. Published

    Task Design for Students’ Work with Basic Theory in Analysis: The Cases of Multidimensional Differentiability and Curve Integrals

    Gravesen, K. F., Grønbæk, Niels & Winsløw, Carl, 2017, In: International Journal of Research in Undergraduate Mathematics Education. 3, 1, p. 9-33 25 p.

    Research output: Contribution to journalJournal articlepeer-review

  17. 2016
  18. Published

    CAS eller Ka'-Selv

    Grønbæk, Niels, 22 Nov 2016, Matematik med it: Baggrund - Metoder - Eksempler. Pedersen, J. U., Spahn, K. S. & Nielsen, G. B. (eds.). Nordby, Samsø: Forlaget Matematik, p. 100-119

    Research output: Chapter in Book/Report/Conference proceedingBook chapterEducationpeer-review

  19. Published

    Evaluering af de skriftlige prøver i matematik på STX og HF ved sommereksamen 2015

    Jessen, C., Nielsen, M. O., Jørgensen, J. S. & Grønbæk, Niels, Jan 2016, Ministeriet for Børn, Undervisning og Ligestilling. 35 p.

    Research output: Book/ReportReport

  20. Published

    Lifting Problems for Normed Spaces

    Grønbæk, Niels, 2016, In: Annals of Functional Analysis. 7, 1, p. 118-126.

    Research output: Contribution to journalJournal articlepeer-review

  21. 2015
  22. Published

    Hvem skal samle handsken op?

    Bang, H. P., Grønbæk, Niels & Larsen, C. R., Jun 2015, In: MONA - Matematik- og Naturfagsdidaktik. 2015, 2, p. 85-89

    Research output: Contribution to journalComment/debatepeer-review

  23. Published

    Media and milieus for complex numbers: An experiment with Maple based text

    Grønbæk, Niels & Winsløw, Carl, 2015, CERME9 - Proceedings of the Ninth Congress of the European Society for Research in Mathematics Education. Krainer, K. & Vondrová, N. (eds.). HAL, p. 2131-2137

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  24. 2014
  25. Published

    Klein's double discontinuity revisited: contemporary challenges for universities preparing teachers to teach calculus

    Winsløw, Carl & Grønbæk, Niels, 2014, In: Recherches en Didactique des Mathématiques. 34, 1, p. 59-86

    Research output: Contribution to journalJournal articlepeer-review

  26. 2013
  27. Published

    Professional Computer Algebra Systems in Upper Secondary Mathematics

    Grønbæk, Niels, 2013. 2 p.

    Research output: Contribution to conferencePosterResearchpeer-review

  28. 2012
  29. Published

    Evaluering af de skriftlige prøver i matematik på stx og hf ved sommereksamen 2011

    Grønbæk, Niels, Jessen, C. & Nielsen, M. O., Nov 2012, 68 p.

    Research output: Book/ReportReport

  30. Published

    Sproglig matematik

    Grønbæk, Niels, Jun 2012, In: MONA: Matematik og Naturfagsdidaktik. 2012, 2, p. 84-86 3 p.

    Research output: Contribution to journalJournal article

  31. 2011
  32. Published

    Temaopgaver i matematik

    Grønbæk, Niels & Winsløw, Carl, May 2011, Forskningsbaseret undervisning - realiteter og potentialer. Christiansen, F. V., Horst, S., Holm, C. & Laursen, K. B. (eds.). København, Vol. 21. p. 35-47

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  33. Published

    Homology and cohomology of Rees semigroup algebras

    Grønbæk, Niels, Gourdeau, F. & White, M. C., 2011, In: Studia Mathematica. 202, 2, p. 105-121

    Research output: Contribution to journalJournal articlepeer-review

  34. 2010
  35. Published

    Evaluering af de skriftlige prøver i matematik på stx og hf ved sommereksamen 2010

    Grønbæk, Niels, Jessen, C. & Nielsen, M. O., Oct 2010, 51 p.. Oct 29, 2010.

    Research output: Memorandum/expositionMemorandum

  36. Published

    BIFLATNESS AND BIPROJECTIVITY OF BANACH ALGEBRAS GRADED OVER A SEMILATTICE

    Grønbæk, Niels & Habibian, F., 2010, In: Glasgow Mathematical Journal. 52, 3, p. 479–495

    Research output: Contribution to journalJournal articlepeer-review

  37. 2009
  38. Published

    Assessment and contract-like relationships in undergraduate mathematics education

    Grønbæk, Niels, Misfeldt, Morten & Winsløw, Carl, 2009, University science and Mathematics Education : Challenges and possibilities. Skovsmose, O., Valero, P. & Christensen, O. (eds.). New York: Springer Science+Business Media, p. 85-108 24 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  39. Published

    Evaluering af de skriftlige prøver i matematik på stx og hf ved sommereksamen 2009

    Grønbæk, Niels, Jessen, C. & Overgård Nielsen, M., 2009, 74 p.. Oct 20, 2009.

    Research output: Memorandum/expositionMemorandum

  40. Published

    Israel Journal of Mathematics

    Grønbæk, Niels & Blanco, A., 2009, In: Israel Journal of Mathematics. 171, 1, p. 127-156

    Research output: Contribution to journalJournal articlepeer-review

  41. 2008
  42. Published

    Evaluering af de skriftlige prøver i matematik på stx og hf ved sommereksamen 2008

    Grønbæk, Niels, Jessen, C. & Overgård Nielsen, M., 2008, Undervisningsministeriet. 58 p.

    Research output: Book/ReportReport

  43. Published

    Push-outs of derivations

    Grønbæk, Niels, 2008, In: Proceedings of the Indian Academy of sciences. Mathematical sciences. 118, 2, p. 235-243

    Research output: Contribution to journalJournal articlepeer-review

  44. 2007
  45. Published

    Cohomology of Banach algebras of operators and geometry of Banach spaces

    Grønbæk, Niels & Blanco, A., 2007, In: Contemporary Mathematics.

    Research output: Contribution to journalJournal articlepeer-review

  46. Published

    Developing and assessing specific competencies in a first course on real analysis

    Grønbæk, Niels & Winsløw, Carl, 2007, In: Research in Collegiate Mathematics Education. VI, p. 99-138 40 p.

    Research output: Contribution to journalJournal articlepeer-review

  47. Published

    Evaluering af skriftlig eksamen i matematik for stx B, hf B og hf C efter ny ordning, maj 2007

    Grønbæk, Niels, Jessen, C. & Overgård Nielsen, M., 2007, Undervisningsministeriet. 79 p.

    Research output: Book/ReportReport

  48. Published

    Thematic projects: a format to further and assess advanced student work in undergraduate mathematics

    Grønbæk, Niels & Winsløw, Carl, 2007, In: Recherches en Didactique des Mathématiques. 27, 2, p. 187-220 34 p.

    Research output: Contribution to journalJournal articlepeer-review

  49. 2006
  50. Published

    Bounded Hochschild cohomology of Banach algebras with a matrix-like structure

    Grønbæk, Niels, 2006, In: Transactions of the American Mathematical Society. 358, p. 2651-2662

    Research output: Contribution to journalJournal articlepeer-review

  51. Published

    Evaluering af skriftlig eksamen i matematik hf-C, ny ordning

    Grønbæk, Niels, Jessen, C. & Overgård Nielsen, M., 2006, Undervisningsministeriet. 35 p.

    Research output: Book/ReportReport

  52. Published

    Factorization and weak amenability of A(X)

    Grønbæk, Niels, 2006, In: Mathematical Proceedings of the Royal Irish Academy. 106A, 1, p. 31-52

    Research output: Contribution to journalJournal articlepeer-review

  53. 2005
  54. Published

    En ny ramme om studier og eksamen i teoretisk matematik

    Grønbæk, Niels & Winsløw, Carl, 2005, En ny ramme om studier og eksamen i teoretisk matematik. Trondhjem, Norge: NTNU, p. 8

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

  55. Published

    En ny ramme om studier og eksamen i teoretisk matematik

    Grønbæk, Niels & Winsløw, Carl, 2005, Vurdering i matematikk - hvorfor og hvordan?. Trondheim: Nasjonalt Senter for Matematikk i opplæringen, NTNU, p. 197-204

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

  56. Published

    Evaluering af skriftlig eksamen i matematik stx og hf 2005

    Grønbæk, Niels, Jessen, C. & Overgård Nielsen, M., 2005, Evaluering af skriftlig eksamen i matematik stx og hf 2005. Undervisningsministeriet, 38 p.

    Research output: Chapter in Book/Report/Conference proceedingReport chapterCommissioned

  57. 2004
  58. Published

    Self-induced Banach algebras

    Grønbæk, Niels, 2004, Self-induced Banach algebras. 363 ed. American Mathematical Society, p. 15

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

  59. Published

    Temaopgaver - et format til fremme og evaluering af dybdelæring

    Grønbæk, Niels & Winsløw, Carl, 2004, Didaktips 4. 4 ed. København, p. alle

    Research output: Chapter in Book/Report/Conference proceedingReport chapterCommunication

  60. 2003
  61. Published

    Compentencies, version ground floor

    Grønbæk, Niels & Winsløw, Carl, 2003, In: CNDs Skriftserie. 7, p. 37-50

    Research output: Contribution to journalJournal articlepeer-review

  62. Published

    Competencies, version ground floor

    Grønbæk, Niels & Winsløw, Carl, 2003, If reform of science education is the answer- what were the questions?. p. 37-50

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

  63. Published

    Kompetencebeskrivelser i Universitetets virkelighed

    Grønbæk, Niels & Winsløv, C., 2003, København, Danmark: Center for naturfagenes didaktik. 8 p.

    Research output: Book/ReportReport

  64. 2000
  65. Published

    Metriske rum 2

    Grønbæk, Niels, 2000, Metriske rum. København: H.C.Ø.-Tryk, p. 38

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

  66. 1999
  67. Published

    On Hochschild cohomology of the augmentation ideal of a locally compact group.

    Grønbæk, Niels & Lau, A. T., 1999, In: Math. Proc. Cambridge Philos. Soc.. 126, p. 139-148

    Research output: Contribution to journalJournal articlepeer-review

  68. 1998
  69. Published

    An imprimitivity theorem for representations of locally compact groups on arbitrary Banach spaces

    Grønbæk, Niels, 1998, In: Pacific Journal of Mathematics. 184, p. 121-148

    Research output: Contribution to journalJournal articlepeer-review

  70. Published

    Derivations into iterated duals of Banach algebras

    Dales, H. G., Ghahramani, F. & Grønbæk, Niels, 1998, In: Studia Mathematica. 128, p. 19-54

    Research output: Contribution to journalJournal articlepeer-review

  71. Published

    Some concepts from group cohomology in the Banach algebra context

    Grønbæk, Niels, 1998, Banach algebras '97. Proceedings of the 13th International Conference on Banach algebras. Berlin-New York: De Gruyter, p. 205-222

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

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