leftGcd

Usage

leftGcd(A, B)
leftGcd(p, q)

Parameter	Type	Description
A, B	${\mathbb{Q}}[n,E]$	Difference operators
p, q	${\mathbb{Q}}[n]$	Polynomials

Returns

leftGcd(A, B) returns $G$ such that $A = G S$, $B = G T$, and every other exact left divisor of $A$ and $B$ is a left divisor of $G$, while leftGcd(p, q) returns $\gcd(p, q)$.

See Also

leftLcm, rightGcd, rightLcm