Talk:Koszul algebra

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What does the $$b_i$$:s mean? JohanK (talk) 10:43, 17 December 2007 (UTC)

the b_i are nonnegative integers. read R^n as R \oplus ... \oplus R, R(i) is the suspension of R to the ith degree, and R(i)^n probably means (R(i))^n [felixs/not logged in] 91.44.236.143 (talk) 11:51, 30 December 2010 (UTC)