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Cycle type of random permutations: A toolkit

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arxiv 2104.12019 v3 pith:YKSCOBEK submitted 2021-04-24 math.CO math.GRmath.NTmath.PR

classification math.COmath.GRmath.NTmath.PR
keywords numbercyclecyclesrandomresultstheorytypeanalysis
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We prove a number of results, new and old, about the cycle type of a random permutation on S_n. Underlying our analysis is the idea that the number of cycles of size k is roughly Poisson distributed with parameter 1/k. In particular, we establish strong results about the distribution of the number of cycles whose lengths lie in a fixed but arbitrary set I. Our techniques are motivated by the theory of sieves in number theory.

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Cited by 5 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Classical and quantum algorithms for characters of the symmetric group

    quant-ph 2025-01 accept novelty 8.0 of 10

    A matrix product state algorithm and a polynomial-size quantum circuit are presented for computing and sampling symmetric group characters, plus a weak-to-strong simulation reduction for granular distributions.

  2. Minimum degree edge-disjoint Hamilton cycles in random directed graphs

    math.CO 2025-02 accept novelty 7.0 of 10

    For p ≥ log^15 n / n, the random digraph D_{n,p} almost surely contains exactly δ±(D_{n,p}) edge-disjoint Hamilton cycles.

  3. Permutation theory governs long-term dynamics of critical Boolean networks

    q-bio.MN 2026-08 reject novelty 6.0 of 10

    For critical K=1 Boolean networks, attractor lengths are governed by the order of the permutation induced by feedback loops, yielding typical maximum lengths exp[(1/2)ln^2 N], extremal lengths exp[sqrt(N ln N)], and m...

  4. Crystalline Spectral Form Factors

    quant-ph 2025-12 conditional novelty 6.0 of 10

    Strong level repulsion produces damped crystalline oscillations of the spectral form factor, with a Debye-Waller suppression, a new plateau time scale t* ≈ t_H sqrt(β/4), and predictable derivative singularities.

  5. Groupoid Cardinality and Random Permutations

    math.CT 2024-12 accept novelty 6.0 of 10

    The Cycle Length Lemma for random permutations is derived from an equivalence of groupoids, giving a categorified proof of a known result.

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