ABSTRACT

U(n) Basic Hypergeometric Series Multiple series generalizations of basic hypergeometric series over the UNITARY GROUPS U(n1): The fundamental theorem of U(n) series takes c1; ..., cn and x1; ..., xn as indeterminates and n]1: Then

c1 cn; qð ÞN (q; q)N

X

Y

1 xr xs

1 xr xs

2 6664

3 7775

Yn

xr xs

cs; q

! yr

q xr xs

; q

! yr

2 666664

3 777775 q

;

where it is assumed that none of the denominators vanish (Bhatnagar 1995, p. 22). The series in this theorem is called an SU(n) series (Milne 1985; Bhatnagar 1995, p. 22).