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Journal of Lie Theory 14 (2004), No. 2, 501--508 Copyright Heldermann Verlag 2004 Loring W. Tu Dept. of Mathematics, Tufts University, Medford MA 02155-7049, U.S.A., loring.tu@tufts.edu MSC 2000: 22E15; 22E60. [FullText-pdf (133 KB)] for subscribers only. |