ar X iv : h ep - t h / 93 10 07 8 v 1 1 4 O ct 1 99 3 SCHUR - WEYL RECIPROCITY FOR

نویسندگان

  • HIROFUMI YAMADA
  • Susumu Ariki
چکیده

The purpose of this paper is to give a reciprocity between Uq(h) and Hn,r, the Hecke algebra of (Z/rZ) ≀ Sn introduced by Ariki and Koike [1]. The Schur-Weyl reciprocity was originally discovered for GL(m) and Sn [17, p.130]. This is the first example of dual pairs and has been generalized to various pairs of groups and algebras. Jimbo [10] proved a q-analogue of the original reciprocity, namely that between Uq(glm) and the Hecke algebra Hn of type A. A.Ram [14] utilizes the reciprocity to obtain a character formula of Hn. Let K = Q(q, u1, . . . , ur) be the field of rational funcitons in variables q, u1, . . . , ur. We adopt K as the base field for both the quantized universal enveloping algebra Uq(glr) and the Hecke algebra Hn. We denote by Uq(h) theK-subalgebra of Uq(glr) generated by q Eii ’s (1 ≤ i ≤ r). In this paper, we show that the commutant of Uq(h) in End((K r)⊗n) is isomorphic to a quotient of Hn,r. We also determine the irreducible decomposition of (K r)⊗n under the action of Hn,r. As a consequence, we obtain the reciprocity for Uq(h) and Hn,r. Let us review the classical Schur-Weyl reciprocity in a modified sense, i.e., that between U(g) and Sn,r. Here, U(g) denotes the universal enveloping algebra of g = glm1⊕· · ·⊕glmr , and Sn,r is the group consisting of n×n permutation matrices

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ar X iv : h ep - t h / 94 10 04 5 v 1 8 O ct 1 99 4 Weyl Pair , Current Algebra and Shift

The Abelian current algebra on the lattice is given from a series of the independent Weyl pairs and the shift operator is constructed by this algebra. So the realization of the operators of the braid group is obtained. For |q| = 1 the shift operator is the product of the theta functions of the generators w n of the current algebra. For |q| = 1 it can be expressed by the quantum dilogarithm of w...

متن کامل

ar X iv : h ep - t h / 93 10 11 7 v 1 1 9 O ct 1 99 3 QUANTUM κ - POINCARE IN ANY DIMENSION

The κ-deformation of the D-dimensional Poincaré algebra (D ≥ 2) with any signature is given. Further the quadratic Poisson brackets, determined by the classical r-matrix are calculated, and the quantum Poincaré group " with noncommuting parameters " is obtained.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1993