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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

A nonlinear Schrödinger equation with fractional noise
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by Aurélien Deya, Nicolas Schaeffer and Laurent Thomann PDF
Trans. Amer. Math. Soc. 374 (2021), 4375-4422 Request permission

Abstract:

We study a stochastic Schrödinger equation with a quadratic nonlinearity and a space-time fractional perturbation, in space dimension $d\leq 3$. When the Hurst index is large enough, we prove local well-posedness of the problem using classical arguments. However, for a small Hurst index, even the interpretation of the equation needs some care. In this case, a renormalization procedure must come into the picture, leading to a Wick-type interpretation of the model. Our fixed-point argument then involves some specific regularization properties of the Schrödinger group, which allows us to cope with the strong irregularity of the solution.
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Additional Information
  • Aurélien Deya
  • Affiliation: Université de Lorraine, CNRS, IECL, F-54000 Nancy, France
  • ORCID: 0000-0001-8786-815X
  • Email: aurelien.deya@univ-lorraine.fr
  • Nicolas Schaeffer
  • Affiliation: Université de Lorraine, CNRS, IECL, F-54000 Nancy, France
  • Email: nicolas.schaeffer@univ-lorraine.fr
  • Laurent Thomann
  • Affiliation: Université de Lorraine, CNRS, IECL, F-54000 Nancy, France
  • MR Author ID: 794415
  • Email: laurent.thomann@univ-lorraine.fr
  • Received by editor(s): May 1, 2020
  • Received by editor(s) in revised form: October 6, 2020, and November 1, 2020
  • Published electronically: March 30, 2021
  • © Copyright 2021 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 374 (2021), 4375-4422
  • MSC (2020): Primary 60H15, 35Q55, 60G22
  • DOI: https://doi.org/10.1090/tran/8368
  • MathSciNet review: 4251233