Search Results - "Ryan, Nathan C."

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  1. 1

    Carceral algorithms and the history of control: An analysis of the Pennsylvania additive classification tool by Massaro, Vanessa A., Dhar, Swarup, Mir, Darakhshan, Ryan, Nathan C.

    Published in Big data & society (01-01-2022)
    “…Scholars have focused on algorithms used during sentencing, bail, and parole, but little work explores what we term “carceral algorithms” that are used during…”
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    Vanishing of quartic and sextic twists of L-functions by Berg, Jennifer, Ryan, Nathan C., Young, Matthew P.

    Published in Research in number theory (01-03-2024)
    “…Let E be an elliptic curve over Q . We conjecture asymptotic estimates for the number of vanishings of L ( E , 1 , χ ) as χ varies over all primitive Dirichlet…”
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  3. 3

    Theta series and number fields: theorems and experiments by Barquero-Sanchez, Adrian, Mantilla-Soler, Guillermo, Ryan, Nathan C.

    Published in The Ramanujan journal (01-11-2021)
    “…Let d and n be positive integers and let K be a totally real number field of discriminant d and degree n . We construct a theta series θ K ∈ M d , n , where M…”
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    Explicit families of congruences for the overpartition function by Ryan, Nathan C., Sirolli, Nicolás, Villegas-Morales, Jean Carlos, Zheng, Qi-Yang

    Published in The Ramanujan journal (2024)
    “…In this article we exhibit new explicit families of congruences for the overpartition function, making effective the existence results given previously by…”
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    Analytic L-functions: Definitions, theorems, and connections by Farmer, David W., Pitale, Ameya, Ryan, Nathan C., Schmidt, Ralf

    “…L-functions can be viewed axiomatically, such as in the formulation due to Selberg, or they can be seen as arising from cuspidal automorphic representations of…”
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    Formulas for central values of twisted spin L-functions attached to paramodular forms by Ryan, Nathan C., Tornaría, Gonzalo, Schmidt, Ralf

    Published in Mathematics of computation (01-03-2016)
    “…In the 1980s Böcherer formulated a conjecture relating the central values of the imaginary quadratic twists of the spin L-function attached to a Siegel modular…”
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  7. 7

    Efficient verification of Tunnell’s criterion by Bach, Eric, Ryan, Nathan C

    “…An integern is congruent if there is a triangle with rational sides whose area isn. In the 1980s Tunnell gave an algorithm to test congruence which relied on…”
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  8. 8

    A Network-Theoretic Analysis of Hospital Admission, Transfer, and Discharge Data by Cioffi, Maria, Mukhtar, Naba, Ryan, Nathan C, Klobusicky, Joe J

    “…Comprehending complex behavior of flow within a graph is of interest to clinicians and mathematicians alike. In this study we examine admission, discharge, and…”
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  9. 9

    SURVEY ARTICLE: CHARACTERIZATIONS OF THE SAITO-KUROKAWA LIFTING by FARMER, DAVID W., PITALE, AMEYA, RYAN, NATHAN C., SCHMIDT, RALF

    Published in The Rocky Mountain journal of mathematics (01-01-2013)
    “…There are a variety of characterizations of Saito-Kurokawa lifts from elliptic modular forms to Siegel modular forms of degree 2. In addition to giving a…”
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  10. 10

    Computations of vector-valued Siegel modular forms by Ghitza, Alexandru, Ryan, Nathan C., Sulon, David

    Published in Journal of number theory (01-11-2013)
    “…We carry out some computations of vector-valued Siegel modular forms of degree two, weight (k,2) and level one, and highlight three experimental results: (1)…”
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  11. 11

    Numerical computation of a certain Dirichlet series attached to Siegel modular forms of degree two by RYAN, NATHAN C., SKORUPPA, NILS-PETER, STRÖMBERG, FREDRIK

    Published in Mathematics of computation (01-10-2012)
    “…The Rankin convolution type Dirichlet series D_{F,G}(s) and G and G D_{F,G}(s)-functions of eigenforms of the same weight are not linear combinations of those…”
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    Efficient computation of the overpartition function and applications by Barquero-Sanchez, Adrian, Collado-Valverde, Gabriel, Ryan, Nathan C., Salas-Jimenez, Eduardo, Sirolli, Nicolás, Villegas-Morales, Jean Carlos

    “…In this paper we develop a method to calculate the overpartition function efficiently using a Hardy-Rademacher-Ramanujan type formula, and we use this method…”
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  15. 15

    Congruences satisfied by eta-quotients by Ryan, Nathan C, Scherr, Zachary, Sirolli, Nicolás, Treneer, Stephanie

    Published 20-03-2023
    “…The values of the partition function, and more generally the Fourier coefficients of many modular forms, are known to satisfy certain congruences. Results…”
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  16. 16

    Explicit families of congruences for the overpartition function by Ryan, Nathan C, Sirolli, Nicolás, Villegas-Morales, Jean Carlos, Zheng, Qi-Yang

    Published 14-10-2024
    “…The Ramanujan Journal (2025) In this article we exhibit new explicit families of congruences for the overpartition function, making effective the existence…”
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    Journal Article
  17. 17

    Inverting the Satake map for Spn and applications to Hecke operators by Ryan, Nathan C., Shemanske, Thomas R.

    Published in The Ramanujan journal (01-11-2008)
    “…By compatibly grading the p -part of the Hecke algebra associated to Sp n (ℤ) and the subring of ℚ[ x 0 ±1 ,…, x n ±1 ] invariant under the associated Weyl…”
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    Vanishing of Quartic and Sextic Twists of $L$-functions by Berg, Jennifer, Ryan, Nathan C, Young, Matthew P

    Published 12-01-2023
    “…Let $E$ be an elliptic curve over $\mathbf{Q}$. We conjecture asymptotic estimates for the number of vanishings of $L(E,1,\chi)$ as $\chi$ varies over all…”
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    Analysis of the Pennsylvania Additive Classification Tool: Biases and Important Features by Dhar, Swarup, Massaro, Vanessa, Mir, Darakhshan, Ryan, Nathan C

    Published 10-12-2021
    “…The Pennsylvania Additive Classification Tool (PACT) is a carceral algorithm used by the Pennsylvania Department of Corrections in order to determine the…”
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