The Z2n Dirac-Dunkl operator and a higher rank Bannai-Ito algebra

被引:28
作者
De Bie, Hendrik [1 ]
Genest, Vincent X. [2 ]
Vinet, Luc [3 ]
机构
[1] Univ Ghent, Fac Engn & Architecture, Dept Math Anal, Galglaan 2, B-9000 Ghent, Belgium
[2] MIT, Dept Math, 77 Massachusetts Ave, Cambridge, MA 02139 USA
[3] Univ Montreal, Ctr Rech Math, Ctr Ville Stn, POB 6128, Montreal, PQ H3C 3J7, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Dirac operator; Dunkl operator; Bannai-Ito algebra;
D O I
10.1016/j.aim.2016.08.007
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
The kernel of the Z(2)(n) Dirac-Dunkl operator is examined. The symmetry algebra A(n) of the associated Dirac-Dunkl equation on Sn-1 is determined and is seen to correspond to a higher rank generalization of the Bannai-Ito algebra. A basis for the polynomial null-solutions of the Dirac-Dunkl operator is constructed. The basis elements are joint eigenfunctions of a maximal commutative subalgebra of An and are given explicitly in terms of Jacobi polynomials. The symmetry algebra is shown to act irreducibly on this basis via raising/lowering operators. A scalar realisation of An is proposed. (C) 2016 Elsevier Inc. All rights reserved.
引用
收藏
页码:390 / 414
页数:25
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