Multiple little q-Jacobi polynomials

We introduce two kinds of multiple little q-Jacobi polynomials pn⇒ with multi-index n⇒=(n1,n2,…,nr) and degree |n⇒|=n1+n2+⋯+nr by imposing orthogonality conditions with respect to r discrete little q-Jacobi measures on the exponential lattice {qk,k=0,1,2,3,…}, where 0