Algebra and Logic Seminars 2006 2005 2004	Seminars 2005  October, 26 - T. S. Blyth Skew pairs of idempotents in regular semigroup more information  September, 26 - Robert E. Hartwig (NCSU, U Power bounded matrices more information  February, 15 - José Carlos Costa (CMAT-UM) Mansidão e cálculo de supremos de pseudovariedades de semigrupos more information
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