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    Behavior of the generalized Rosenblatt process at extreme critical exponent values

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    Date Issued
    2017-03-01
    Publisher Version
    10.1214/15-AOP1087
    Author(s)
    Bai, Shuyang
    Taqqu, Murad S.
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    Permanent Link
    https://hdl.handle.net/2144/39148
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    Accepted manuscript
    Citation (published version)
    Shuyang Bai, Murad S Taqqu. 2017. "BEHAVIOR OF THE GENERALIZED ROSENBLATT PROCESS AT EXTREME CRITICAL EXPONENT VALUES." ANNALS OF PROBABILITY, Volume 45, Issue 2, pp. 1278 - 1324 (47). https://doi.org/10.1214/15-AOP1087
    Abstract
    The generalized Rosenblatt process is obtained by replacing the single critical exponent characterizing the Rosenblatt process by two different exponents living in the interior of a triangular region. What happens to that generalized Rosenblatt process as these critical exponents approach the boundaries of the triangle? We show by two different methods that on each of the two symmetric boundaries, the limit is non-Gaussian. On the third boundary, the limit is Brownian motion. The rates of convergence to these boundaries are also given. The situation is particularly delicate as one approaches the corners of the triangle, because the limit process will depend on how these corners are approached. All limits are in the sense of weak convergence in C[0,1]. These limits cannot be strengthened to convergence in L2(Ω).
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    • CAS: Mathematics & Statistics: Scholarly Papers [280]
    • BU Open Access Articles [3866]


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