The Fields medal, known as the Nobel prize of mathematics, is handed out every four years and this time was awarded to two Chinese citizens, one American and one Canadian. Advertisement AdvertisementAdvertisement AdvertisementChinese mathematicians Hong Wang and Yu Deng, American John Pardon, and Canada's Jacob Tsimerman are this year's recipients of the prize. Last year, she solved a mathematical puzzle that had stumped experts for more than a century. Wang told AFP. On Thursday, Tsimerman told journalists he will soon start a position at OpenAI in their safety division.