Numerical Calculation of Monotonicity Properties of the Blow-Up Time of NLS

Numerical Calculation of Monotonicity Properties of the Blow-Up Time of NLS

Year:    2009

Communications in Computational Physics, Vol. 5 (2009), Iss. 2-4 : pp. 745–759

Abstract

We investigate blow-up of the focusing nonlinear Schr ¨odinger equation, in the critical and supercritical cases. Numerical simulations are performed to examine the dependence of the time at which blow-up occurs on properties of the data or the equation. Three cases are considered: dependence on the scale of the nonlinearity when the initial data are fixed; dependence upon the strength of a quadratic oscillation in the initial data when the equation and the initial profile are fixed; and dependence upon a damping factor when the initial data are fixed. In most of these situations, monotonicity in the evolution of the blow-up time does not occur.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2009-CiCP-7761

Communications in Computational Physics, Vol. 5 (2009), Iss. 2-4 : pp. 745–759

Published online:    2009-01

AMS Subject Headings:    Global Science Press

Copyright:    COPYRIGHT: © Global Science Press

Pages:    15

Keywords: