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The Geometry of Lecture Hall Partitions and Quadratic Permutation Statistics

Abstract : We take a geometric view of lecture hall partitions and anti-lecture hall compositions in order to settle some open questions about their enumeration. In the process, we discover an intrinsic connection between these families of partitions and certain quadratic permutation statistics. We define some unusual quadratic permutation statistics and derive results about their joint distributions with linear statistics. We show that certain specializations are equivalent to the lecture hall and anti-lecture hall theorems and another leads back to a special case of a Weyl group generating function that "ought to be better known.''
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Katie L. Bright, Carla D. Savage. The Geometry of Lecture Hall Partitions and Quadratic Permutation Statistics. 22nd International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2010), 2010, San Francisco, United States. pp.569-580. ⟨hal-01186304⟩

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