TD-pairs and the $q$-Onsager algebra
TD-pairs and the $q$-Onsager algebra
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TD 对和 $q$-Onsager 代数
DOI:
10.1090/suga/444
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Tatsuro Ito
中科院分区:
文献类型:
--
作者:
Tatsuro Ito
TD-pairs are a relatively new concept that has arisen from irreducible representations of Terwilliger algebras for (P and Q)-polynomial schemes in the field of algebraic combinatorics. They are defined as follows. Let V be a finite-dimensional vector space over the complex number field C, and let A, A∗ be diagonalizable linear transformations of V. We assume that V is irreducible as an〈 A, A∗〉-module, where〈 A, A∗〉 denotes the subalgebra of End (V) generated by A, A∗. The pair of the linear transformations A, A∗ is called a TD-pair (tridiagonal pair) if the eigenspaces {Vi} d i= 0 of A and the eigenspaces {V∗ i} d