Chaim Samuel Hönig
Chaim Samuel Hönig (1 February 1926 – 19 March 2018) was a Brazilian mathematician. He was the main proposer of the Brazilian Mathematical Colloquium (1957), one of the founders of the Brazilian Mathematical Society (SBM), and its first president. Hönig was a full professor at the Institute of Mathematics and Statistics of the University of São Paulo and a member of the Brazilian Academy of Sciences. Hönig made relevant contributions to functional analysis.