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We consider a nontrivial action of $\mathrm{C}_2$ on the type $1$ spectrum$\mathcal{Y} := \mathrm{M}_2(1) \wedge \mathrm{C}(\eta)$, which is well-knownfor admitting a $1$-periodic $v_1-$self-map. The resultant finite$\mathrm{C}_2$-equivariant spectrum $\mathcal{Y}^{\mathrm{C}_2}$ can also beviewed as the complex points of a finite $\mathbb{R}$-motivic spectrum$\mathcal{Y}^\mathbb{R}$. In this paper, we show that one of the $1$-periodic$v_1-$self-maps of $\mathcal{Y}$ can be lifted to a self-map of$\mathcal{Y}^{\mathrm{C}_2}$ as well as $\mathcal{Y}^{\mathbb{R}}$. Further,the cofiber of the self-map of $\mathcal{Y}^{\mathbb{R}}$ is a realization ofthe subalgebra $\mathcal{A}^\mathbb{R}(1)$ of the $\mathbb{R}$-motivic Steenrodalgebra. We also show that the $\mathrm{C}_2$-equivariant self-map is nilpotenton the geometric fixed-points of $\mathcal{Y}^{\mathrm{C}_2}$.

An $\mathbb{R}$-motivic $v_{1}-$self-map of periodicity $1$