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Correlation structure and resonant pairs for arithmetic random waves

Author

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  • Cammarota, Valentina
  • Maffucci, Riccardo W.
  • Marinucci, Domenico
  • Rossi, Maurizia

Abstract

The geometry of Arithmetic Random Waves has been extensively investigated in the last fifteen years, starting from the seminal papers (Rudnick and Wigman, 2008; Oravecz et al., 2008). In this paper we study the correlation structure among different functionals such as nodal length, boundary length of excursion sets, and the number of intersection of nodal sets with deterministic curves in different classes; the amount of correlation depends in a subtle fashion from the values of the thresholds considered and the symmetry properties of the deterministic curves. In particular, we prove the existence of resonant pairs of threshold values where the asymptotic correlation is full, that is, at such values one functional can be perfectly predicted from the other in the high energy limit. We focus mainly on the 2-dimensional case but we discuss some specific extensions to dimension 3.

Suggested Citation

  • Cammarota, Valentina & Maffucci, Riccardo W. & Marinucci, Domenico & Rossi, Maurizia, 2025. "Correlation structure and resonant pairs for arithmetic random waves," Stochastic Processes and their Applications, Elsevier, vol. 181(C).
    • Handle: RePEc:eee:spapps:v:181:y:2025:i:c:s0304414924002333
    DOI: 10.1016/j.spa.2024.104525
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