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Asymptotics for the standard and the Capelli identities

机译:标准和Capelli身份的渐近性

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摘要

Let {c n (St k )} and {c n (C k )} be the sequences of codimensions of the T-ideals generated by the standard polynomial of degreek and by thek-th Capelli polynomial, respectively. We study the asymptotic behaviour of these two sequences over a fieldF of characteristic zero. For the standard polynomial, among other results, we show that the following asymptotic equalities hold: $$begin{gathered} c_n left( {St_{2k} } right) simeq c_n left( {C_{k^2 + 1} } right) simeq c_n left( {M_k left( F right)} right), hfill c_n left( {St_{2k + 1} } right) simeq c_n left( {M_{k times 2k} left( F right) oplus M_{2k times k} left( F right)} right), hfill end{gathered} $$ whereM k (F) is the algebra ofk×k matrices andM k×l (F) is the algebra of (K+l)×(k+l) matrices having the lastl rows and the lastk columns equal to zero. The precise asymptotics ofc n (M k (F)) are known and those ofM k×2k (F) andM 2k×k (F) can be easily deduced. For Capelli polynomials we show that also upper block triangular matrix algebras come into play.
机译:令{cn (St k )}和{cn (C k )}为由度k和k的标准多项式生成的T理想的余维序列。分别是第k个Capelli多项式。我们研究特征为零的fieldF上这两个序列的渐近行为。对于标准多项式,除其他结果外,我们证明以下渐近等式成立:$$ begin {gathered} c_n left({St_ {2k}} right)simeq c_n left({C_ {k ^ 2 + 1}} right )simeq c_n左({M_k左(F右)}右),填充c_n左({St_ {2k + 1}}右)simeq c_n左({M_ {k乘2k}左(F右)oplus M_ {2k k}左(F右)}右),填充结束{聚集} $$,其中M k (F)是k×k个矩阵的代数,M k×l (F)是...的代数具有最后一行和最后一列等于零的(K + 1)×(k + 1)矩阵。已知c n (M k (F)的精确渐近性,可以轻松推导M k×2k (F)和M 2k×k (F)的渐近性。对于Capelli多项式,我们表明上块三角矩阵代数也起作用。

著录项

  • 来源
    《Israel Journal of Mathematics》 |2003年第1期|125-145|共21页
  • 作者

    A. Giambruno; M. Zaicev;

  • 作者单位

    Dipartimento di Matematica ed Applicazioni Università di Palermo;

    Department of Algebra Faculty of Mathematics and Mechanics Moscow State University;

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  • 正文语种 eng
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