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Dr. Michael Kelly was an invited speaker at two research conferences held in Brazil during the month of July, 2016. He presented a lecture entitled "Index bounds for complexes associated to limit groups" at the meeting Nielsen Theory and Related Topics, July 4-9, Rio Claro, SP.
He also lectured on "Free groups and fixed points of homotopy idempotents" at the XXth Encontro Brasileiro de Topologia, July 11-16, Curitiba, PR.