The Abel Competition The Norwegian Mathematical Olympiad Niels Henrik Abels matematikkonkurranse

Calendar and selected news

The 2018 finals

The finals were held on 7 March at NTNU in Trondheim. Andreas Alberg (Fagerborg skole) gained first place with 38 points. Bjørnar Gullikstad Hem (Nadderud vgs) and Erik Ma (Trondheim katedralskole) got second and third places, with 34 and 31 points. The prize ceremony was held at Frimurerlogen, where the minister of education and integration, Jan Tore Sanner, presented the prizes. We have a more detailed score board.

By Harald Hanche-Olsen,

Results from round 2

Etter to runder i Abelkonkurransen har Andreas Alberg (Fagerborg skole, 185 poeng) førsteplassen, fulgt av Sigvart Brendberg (Kristen vgs Trøndelag, 175 poeng), Donny Chan (Møglestu vgs, 160 poeng) og Bjørnar Gullikstad Hem (Nadderud vgs, også 160 poeng).

Andreas Alberg (Fagerborg skole, 185 points) has taken first place after two rounds of the Abelcompetition, followed by Sigvart Brendberg (Kristen vgs Trøndelag, 175 points), Donny Chan (Møglestu vgs, 160 points), and Bjørnar Gullikstad Hem (Nadderud vgs, also 160 points).

In the second round there were 413 competitors from 135 schools. The results from the best third – 136 participants – can be found here (in Norwegian; updated 16 February). (Those who have not given permission by checking the appropriate box on the answer sheet, are listed as N.N. If you do want your name on the list after all, or if you prefer to be listed as N.N., get in touch, and we will update the list.)

At least the 20 first on the list will be invited to the finals in Trondheim. We usually invite a few more, in order to recruit for international competitions. (Exchange students without Norwegian citizenship or permanent residence in Norway do not qualify for the international competitions.) The exact number will to be invited will be decided upon very soon, after which an invitation email is sent to the finalists.

A few words regarding the problems: Clearly, we have made this problem set too difficult. That's especially unfortunate after we made such good progress with achieving a reasonable level of difficulty in the first round! We will learn from this, and do better next year. (But there should always be some difficult problems!)

We have also received a number of reactions to problem 2. That's a trick question, they say, and that is not entirely wrong. A very large number of competitors were tricked by it. Again, we should learn from this and not do it again.

Below is a list of points and cumulative percentages. For example, those who earned 120 points are among the 8.5 percent best.

185: 0.2% · 175: 0.5% · 160: 1.0% · 147: 1.2% · 146: 2.2% · 145: 2.4% · 141: 2.7% · 140: 3.1% · 135: 4.1% · 133: 4.4% · 132: 4.6% · 131: 5.1% · 130: 5.3% · 128: 5.6% · 127: 6.1% · 126: 6.5% · 125: 7.0% · 122: 7.5% · 121: 8.0% · 120: 8.5% · 117: 9.0% · 116: 9.7% · 115: 10.2% · 112: 10.7% · 111: 10.9% · 110: 12.1% · 109: 12.6% · 108: 13.1% · 107: 13.8% · 105: 14.8% · 104: 15.5% · 103: 16.5% · 102: 17.4% · 101: 17.9% · 100: 18.9% · 99: 19.1% · 98: 19.4% · 97: 20.6% · 96: 21.1% · 95: 22.8% · 94: 24.5% · 93: 25.2% · 92: 25.9% · 91: 26.4% · 90: 28.1% · 89: 29.3% · 88: 31.2% · 87: 32.2% · 86: 32.9% · 85: 34.1% · 84: 35.1% · 83: 35.4% · 82: 37.0% · 81: 38.5% · 80: 40.9% · 79: 42.1% · 78: 44.1% · 77: 46.2% · 76: 47.5% · 75: 50.8% · 74: 54.2% · 73: 56.7% · 72: 58.6% · 71: 62.0% · 70: 64.9% · 69: 65.9% · 68: 66.3% · 67: 66.6% · 66: 68.5% · 65: 71.9% · 64: 74.3% · 63: 76.5% · 62: 80.4% · 61: 84.0% · 60: 86.0% · 59: 86.7% · 58: 87.2% · 57: 88.4% · 56: 89.6% · 55: 92.5% · 54: 94.2% · 53: 95.9% · 52: 97.1% · 51: 100.0%.

By Harald Hanche-Olsen,  · updated , , and

Round 2 is over

You can find the problems and the solutions (in Norwegian only) on the “Problems” page

By Harald Hanche-Olsen,

Results from Round 1

The results from Round 1 have been recorded and quality checked. The list of results is now available. (The list is updated after round 2: Names and classes corrected.)

In total there were 4213 contestants from 247 schools. (That is an increase of nearly 7 % since last year, and the highest number we have had in years.) At least 51 points will be required to go on to round 2, and 38 points to receive a diploma. So it appears that we have succeeded reasonably well in reducing the level of difficulty compared to last year.

For you who wish to compare your own result with others': Here is a list of points and cumulative percentages. For example, those who got 33 points are among the top 50.06% of the participants.

100: 0.05% · 96: 0.07% · 95: 0.21% · 92: 0.24% · 91: 0.28% · 90: 0.36% · 87: 0.40% · 86: 0.50% · 85: 0.57% · 83: 0.59% · 82: 0.66% · 81: 0.76% · 80: 0.83% · 79: 0.88% · 78: 0.90% · 77: 1.04% · 76: 1.16% · 75: 1.28% · 74: 1.40% · 73: 1.50% · 72: 1.64% · 71: 1.71% · 70: 1.92% · 69: 1.99% · 68: 2.21% · 67: 2.40% · 66: 2.47% · 65: 2.97% · 64: 3.23% · 63: 3.32% · 62: 3.47% · 61: 3.92% · 60: 4.87% · 59: 5.27% · 58: 5.70% · 57: 6.08% · 56: 6.60% · 55: 7.55% · 54: 8.36% · 53: 8.97% · 52: 9.76% · 51: 10.63% · 50: 12.34% · 49: 13.10% · 48: 14.48% · 47: 15.62% · 46: 17.16% · 45: 19.75% · 44: 20.98% · 43: 22.67% · 42: 24.64% · 41: 26.51% · 40: 30.29% · 39: 32.40% · 38: 34.68% · 37: 36.84% · 36: 39.47% · 35: 44.79% · 34: 47.57% · 33: 50.06% · 32: 52.77% · 31: 55.49% · 30: 60.74% · 29: 63.21% · 28: 66.41% · 27: 68.88% · 26: 71.66% · 25: 77.09% · 24: 79.33% · 23: 81.63% · 22: 83.57% · 21: 85.54% · 20: 90.10%.

By Harald Hanche-Olsen,  · updated

Baltic Way 2017

Baltic Way 2017 is over. The team from St. Petersburg won the competition, while the Norwegian team came in eighth place among the eleven participating nations.

By Harald Hanche-Olsen,

Problems and solutions for round 1

The problems and solutions for round 1 can now be found on the problems page (see the menu above).

By Harald Hanche-Olsen,

Results from IMO 2017

In the 58th International Mathematical Olympiad (IMO) in Rie de Janeiro, Norway made 78th place among 111 competing countries. This year's winning country was South Korea, followed by China, Vietnam, USA, and Iran.

Andreas Alberg came in 139th, and Marius Stensrud 265th, among 615 competitors, and won Bronze medals thereby. Bjørnar Gullikstad Hem, Anna Lyubarskaja, and Ole Marius Strøhm were all given honourable mention for their solutions of Problem 1.

Also worth of note is that the Advisory Board has assigned Norway the rôle of host country for IMO 2022. In the intervening years 2018–2021, IMO takes place in Romania, UK, Russia, and USA.

By Harald Hanche-Olsen,

NMC, EGMO, and IMO 2017

Some news items we have neglected this spring:

The 31st Nordic Mathmematical Contest (NMC 2017) was run on 3 April 2017 in the schhols. Sweden dominated the top of the results list, with the top five places. Björn Magnusson won a a single point before a shared second place. The best Norwegian score was achieved by Marius Stensrud, who got a shared sixth place. The Norwegians did quite well, taking ten out of the top 30 places.

The sixth European Girls' Mathematical Olympiad (EGMO 2017) was held in Zürich 6–12 April. Anna Lyubarskaja received a bronze medal for her 73rd place among 168 contestants, while Yuting (Samanda) Hu received honourable mention for her solution of Problem 1.

To the 58th International Mathematical Olympiad (IMO 2017) Norway sends a team consisting of

  • Andreas Alberg (Fagerborg skole)
  • Amund Skretting Bergset (Asker vgs)
  • Bjørnar Gullikstad Hem (Nadderud vgs)
  • Anna Lyubarskaja (Trondheim katedralskole)
  • Marius Stensrud (Ski vgs)
  • Ole Marius Strøhm (Asker vgs)

Dávid Kunszenti-Kovács and Johannes Kleppe travel as leader and deputy leader, respectively, while Gunnar Alberg travels with the team as an observer. We wish the team luck!

Additionally, we mention that Dávid Kunszenti-Kovács was elected a member of the IMO Advisory Board during last year's IMO.

By Harald Hanche-Olsen,
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