| Isometric factorization of weakly compact operators and the approximation property A Lima, O Nygaard, E Oja Israel Journal of Mathematics 119, 325-348, 2000 | 89 | 2000 |
| Remarks on diameter 2 properties T Abrahamsen, V Lima, O Nygaard arXiv preprint arXiv:1304.7068, 2013 | 62 | 2013 |
| Slices in the unit ball of a uniform algebra O Nygaard, D Werner Archiv der Mathematik 76 (6), 441-444, 2001 | 49 | 2001 |
| Almost isometric ideals in Banach spaces TA Abrahamsen, V Lima, O Nygaard Glasgow Mathematical Journal 56 (2), 395-407, 2014 | 35 | 2014 |
| Diameter 2 properties and convexity TA Abrahamsen, P Hájek, O Nygaard, J Talponen, S Troyanski arXiv preprint arXiv:1506.05237, 2015 | 23 | 2015 |
| Thick sets in Banach spaces and their properties O Nygaard Quaestiones Mathematicae 29 (1), 59-72, 2006 | 21 | 2006 |
| New applications of extremely regular function spaces T Abrahamsen, O Nygaard, M Põldvere Pacific Journal of Mathematics 301 (2), 385-394, 2019 | 20 | 2019 |
| A strong uniform boundedness principle in Banach spaces O Nygaard Proceedings of the American Mathematical Society 129 (3), 861-863, 2001 | 19 | 2001 |
| A remark on Rainwater’s theorem O Nygaard Annales Mathematicae et Informaticae 32, 125-127, 2005 | 18 | 2005 |
| Students’ perceptions about the relevance of mathematics in an Ethiopian preparatory school AT Gebremichael, S Goodchild, O Nygaard The Seventh Congress of the European Society for Research in Mathematics …, 2011 | 12 | 2011 |
| On weak integrability and boundedness in Banach spaces TA Abrahamsen, O Nygaard, M Põldvere Journal of mathematical analysis and applications 314 (1), 67-74, 2006 | 12 | 2006 |
| Den blokkerende misoppfatning O Nygaard, AG Zernichow Publisert i Spesialpedagogikk (2006). Temanummer Matematikkvansker …, 2006 | 11 | 2006 |
| Boundedness and surjectivity in normed spaces O Nygaard International Journal of Mathematics and Mathematical Sciences 32, 149-165, 2002 | 11 | 2002 |
| Remarks on diameter two properties TA Abrahansen, V Lima, O Nygaard J. Convex Anal 20 (2), 439-452, 2013 | 9 | 2013 |
| On the compact approximation property V Lima, Å Lima, O Nygaard Studia math 160 (2), 185-200, 2004 | 9 | 2004 |
| Two properties of Müntz spaces TA Abrahamsen, A Leraand, A Martiny, O Nygaard Demonstratio Mathematica 50 (1), 239-244, 2017 | 8 | 2017 |
| Diameter two properties, convexity and smoothness TA Abrahamsen, V Lima, O Nygaard, S Troyanski Milan Journal of Mathematics 84 (2), 231-242, 2016 | 8 | 2016 |
| On λ-strict ideals in Banach spaces TA Abrahamsen, O Nygaard Bulletin of the Australian Mathematical society 83 (2), 231-240, 2011 | 8 | 2011 |
| On thickness and thinness of Banach spaces TA Abrahamsen, J Langemets, V Lima, O Nygaard arXiv preprint arXiv:1402.0996, 2014 | 5 | 2014 |
| Families of vector measures of uniformly bounded variation O Nygaard, M Poldvere Archiv der Mathematik 88 (1), 57-61, 2007 | 5 | 2007 |
