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 Integral Chow motives of threefolds with $K$-motives of unit type Bull. Korean Math. Soc. 2017 Vol. 54, No. 5, 1827-1849 https://doi.org/10.4134/BKMS.b160759Published online September 30, 2017 Sergey Gorchinskiy Steklov Mathematical Institute of Russian Academy of Sciences Abstract : We prove that if a smooth projective algebraic variety of dimension less or equal to three has a unit type integral $K$-motive, then its integral Chow motive is of Lefschetz type. As a consequence, the integral Chow motive is of Lefschetz type for a smooth projective variety of dimension less or equal to three that admits a full exceptional collection. Keywords : $K$-motives, Chow motives, exceptional collections MSC numbers : 14C15, 14C35 Downloads: Full-text PDF