International Mathematical Olympiad selection process

This article describes the selection process, by country, for entrance into the International Mathematical Olympiad.

The International Mathematical Olympiad (IMO) is an annual mathematics olympiad for students younger than 20 who have not started at university.

Each year, participating countries send at most 6 students. The selection process varies between countries, but typically involves several rounds of competition, each progressively more difficult, after which the number of candidates is repeatedly reduced until the final 6 are chosen.

Many countries also run training events for IMO potentials, with the aim of improving performance as well as assisting with team selection.

In Argentina, the Olimpíada Matemática Argentina is organized each year by Fundación Olimpíada Matemática Argentina. All students that took and passed the National Finals (fifth and last round of the competition) exams, usually held in November; and were born before July 1 21 years ago, are allowed to take two new written tests to be selected for IMO, usually in May. From the results of that tests, six titular students and a number of substitutes are selected to represent Argentina at the International Mathematical Olympiad.

In Australia, selection into the IMO team is determined by the Australian Mathematics Trust and is based on the results from four exams:

The Australian Mathematics Olympiad (AMO) is held annually in the second week of February. It is composed of two four-hour papers held over two consecutive days. There are four questions in each exam for a total of eight questions. Entry is by invitation only with approximately 100 candidates per year.

A month after the AMO, the Asian Pacific Mathematics Olympiad is held (APMO) and the top 25 from the AMO are invited to sit the exam. It is a four and a half hour exam with five questions.

The top 12 students from the AMO and APMO (along with another 12 or so junior students) are then invited to a ten-day camp held in Sydney in the April school holidays. During this camp, two four-and-a-half hour selection exams are held, each with four questions. The top six candidates along with a reserve are then announced as part of the team based on their results in the four exams.

In 2011, there were three selection exams, each with three questions in four-and-a-half hours to better simulate the conditions of the IMO.

The selection process is organised by Bangladesh Mathematical Olympiad. There are three levels of selection in Bangladesh. In first two levels the students participate in four academic categories: primary, junior, secondary and higher secondary.

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