MathSciNet bibliographic data MR1387682 17B37 (05E10 17B10) Berenstein, Arkady; Zelevinsky, Andrei Canonical bases for the quantum group of type \$A\sb r\$$A\sb r$ and piecewise-linear combinatorics. Duke Math. J. 82 (1996), no. 3, 473–502. Article

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