Representations and corepresentations of $p$-equipped posets
Abstract: For $p$ a prime number and $\mathscr{P}$ a $p$-equipped finite partially ordered set we construct two different right-peak algebras (in the sense of \cite{KS}) $\Lambda{(r)}$ and $\Lambda{(c)}$. We consider the category $\mathcal{U}{(r)}$ $\left(\mathcal{U}{(c)}\right)$ consisting of the finitely generated right $\Lambda{(r)}$-modules ($\Lambda{(c)}$-modules) which are socle-projective. The categories $\mathcal{U}{(r)}$ and $\mathcal{U}{(c)}$ have almost split sequences. We describe he Auslander-Reiten components $\mathcal{C}{\mathcal{U}}{(r)}$ and $\mathcal{C}{\mathcal{U}}{(c)}$ of the corresponding simple projective modules in $\mathcal{U}{(r)}$ and $\mathcal{U}{(c)}$. Then we prove that there is a bijective correspondence between $\mathcal{C}{\mathcal{U}}{(r)}$ and $\mathcal{C}{\mathcal{U}}{(c)}$, although the corresponding almost split sequences have different shapes.
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