In 1962 the International Congress was held in Stockholm and Hörmander, as well as being heavily involved in the organisation, received a Fields Medal for his work on partial differential equations.
Sa 1962 ng International Kongreso ay gaganapin sa Stockholm at Hörmander, pati na rin ang pagiging mabigat na kasangkot sa organisasyon, na natanggap ng isang patlang na medalya para sa kanyang trabaho sa mga bahagi ng kaugalian equation.