Positive Jantzen sum formulas for cyclotomic Hecke algebras
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DOI: 10.1007/s00209-021-02957-7
Abstract: This paper proves a “positive” Jantzen sum formula for the Specht modules of the cyclotomic Hecke algebras of type A and uses it to obtain new bounds on decomposition numbers. Quite remarkably, our results are proved… read more here.
Keywords: sum; jantzen sum; hecke algebras; sum formula ... See more keywords