Life and Mathematics of Alfred Jacobus van der Poorten (1942–2010)

Alf van der Poorten was born in the Netherlands in 1942 and educated in Sydney after his family’s move to Australia in 1951. He was based in Sydney for the rest of his life but travelled overseas for professional reasons several times a year from 1975 onwards. Alf was famous for his research in number theory and for his extensive contributions to the mathematics profession both in Australia and overseas.