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Tiered tree, Parking function and Postnikov-Shapiro algebra (2408.03087v1)
Published 6 Aug 2024 in math.CO
Abstract: Tiered trees were introduced as a combinatorial object for counting absolutely indecomposable representation of certain quivers and torus orbit of certain homogeneous variety. In this paper, we define a bijection between the set of parallelogram polyominoes and graphical parking functions. Moreover, we defined the space $\mathcal{S}_{G}$ for complete tiered graphs and described tiered graphs in terms of Whitney's operations.
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