Mikael Passare, Professor of mathematics at Stockholm University, passed away on the 15 September 2011 in a tragic accident. Passare received a doctorate in mathematics in 1984 from Uppsala University. He had been deputy director of the Institut Mittag-Leffler, chairman of the Swedish Mathematical Society, and member of the Swedish National Committee for Mathematics at the Royal Academy of Sciences. He conducted research in the theory of residues in several complex variables and in the last years mainly on the theory of amoebas and partly on their links to tropical geometry.
Passare was known among young mathematicians for his positive and encouraging attitude. He had many contacts all over the world and participated in and organized many social activities. He was a member of the EMS Committee for Developing Countries