Low regularity solutions for a 2D quadratic nonlinear Schrödinger equation
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- by Ioan Bejenaru and Daniela De Silva PDF
- Trans. Amer. Math. Soc. 360 (2008), 5805-5830 Request permission
Abstract:
We establish that the initial value problem for the quadratic non-linear Schrödinger equation \[ iu_t - \Delta u = u^2,\] where $u: \mathbb {R}^2 \times \mathbb {R} \to \mathbb {C}$, is locally well-posed in $H^s(\mathbb {R}^2)$ when $s > -1$. The critical exponent for this problem is $s_c=-1$, and previous work by Colliander, Delort, Kenig and Staffilani, 2001, established local well-posedness for $s > -3/4$.References
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Additional Information
- Ioan Bejenaru
- Affiliation: Department of Mathematics, University of California, Los Angeles, California 90095
- Address at time of publication: Department of Mathematics, Texas A & M University, College Station, Texas 77843
- Daniela De Silva
- Affiliation: Department of Mathematics, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218
- Address at time of publication: Department of Mathematics, Columbia University, 2990 Broadway, New York, New York 10027
- MR Author ID: 681940
- Received by editor(s): August 21, 2006
- Published electronically: June 19, 2008
- Additional Notes: The authors were partially supported by the Mathematical Sciences Research Institute (MSRI) at Berkeley.
- © Copyright 2008 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 360 (2008), 5805-5830
- MSC (2000): Primary 35Q55
- DOI: https://doi.org/10.1090/S0002-9947-08-04415-2
- MathSciNet review: 2425697