Forward circle minus
From timescalewiki
Let $\mathbb{T}$ be a time scale and let $p,q \in \mathcal{R}(\mathbb{T},\mathbb{C})$ be regressive. We define the (forward) circle minus operation $\ominus_{\mu}$ $$\ominus_h z = \dfrac{-z}{1+zh}.$$
Contents
Properties
Theorem
The circle minus $\ominus_h$ is the inverse operation of the circle plus operation $\oplus_h$. Moreover, $$z \ominus_h w = z \oplus_h (\ominus_h w).$$
