... electronic journal of combinatorics 3 (1996), #R19 16[4] G. Gasper and M. Rahman, An indefinite bibasic summation formula and some quadratic,cubic, and quartic summation and transformation formulas,Canad.J.Math.,42 ... gcdp,q(P∗,R∗) and gcdp,q(Q∗,jR∗)= 1for all j ≥ 1, and (b) let ax, bx, ay,andbydenote the coefficients of the lowest occurring powers of x and y in A∗(x, 0), B∗(x, 0), A∗(0,y),andB∗(0,y), ... lyQ(x), lxR(y),andlyR(x) denote the leading coefficient polynomials of Q and R with respect to x and y, respectively. Let QR+:= Q + R and QR−:= Q − R.Then bounds for degx(Y ) and degy(Y...