非紧量子代数U_q(u(n,1))的Gelfand-Graev基的q-模拟
q-Analog of Gelfand-Graev Basis for the Noncompact Quantum Algebra U_q(u(n,1))
摘要:
对于量子代数U_q(gl(n+1))在子代数U_q(gl(n))上的约化,给出了Mickelsson-Zhelobenko约化Z-代数Z_q(gl(n+1),gl(n))的生成元及其定义关系的一个显式描述.利用这个Z-代数,我们描述了非紧量子代数U_q(u(n,1))的离散级数的Hermite不可约表示,U_q(u(n+1))是U_q(gl(n+1))的实形式,即构造了一个显式的正交Gelfand-Graev基.
英文摘要:
For the quantum algebra U_q(gl(n+1)) in its reduction on the subalgebra U_q(gl(n)) an explicit description of a Mickelsson-Zhelobenko reduction Z-algebra Z_q(gl(n+1),gl(n)) is given in terms of the generators and their defining relations. Using this Z-algebra we describe Hermitian irreducible representations of a discrete series for the noncompact quantum algebra U_q(u(n,1)) which is a real form of U_q(gl(n+1)), namely, an orthonormal Gelfand-Graev basis is constructed in an explicit form.
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