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A consecutive Lehmer code for parabolic quotients of the symmetric group - MaRDI portal

A consecutive Lehmer code for parabolic quotients of the symmetric group (Q820843)

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A consecutive Lehmer code for parabolic quotients of the symmetric group
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    A consecutive Lehmer code for parabolic quotients of the symmetric group (English)
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    28 September 2021
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    The authors define an encoding for parabolic permutations that distinguishes between parabolic \(231\)-avoiding permutations. They prove that the componentwise order on these codes realizes the parabolic Tamari lattice, and construct a bijection inducing an isomorphism between the parabolic Tamari lattice and a certain \(\nu\)-Tamari lattice. Furthermore, they show how this bijection is closely related to the map used when the lattice isomorphism was first proved by \textit{C. Ceballos} et al. [Electron. J. Comb. 27, No. 1, Research Paper P1.14, 31 p. (2020; Zbl 1480.06003)].
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    symmetric group
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    Tamari lattice
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    parabolic quotient
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    Lehmer code
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