# q skew derivation

Let $(\sigma,\delta)$ be a skew derivation on a ring $R$. Let $q$ be a central $(\sigma,\delta)$-constant (http://planetmath.org/SigmaDeltaConstant). Suppose further that $\delta\sigma=q\cdot\sigma\delta$. Then we say that $(\sigma,\delta)$ is a $q$-.

Title q skew derivation QSkewDerivation 2013-03-22 11:49:41 2013-03-22 11:49:41 antizeus (11) antizeus (11) 10 antizeus (11) Definition msc 16S36 QSkewPolynomialRing