Abstract
The Cauchy problem of one dimensional fourth-order nonlinear Schrödinger equation related to the vortex filament is studied. Local well-posedness for initial data in H s (ℝ) (s > 1/2) is obtained without conditions ν < 0 and μ − ν/2 = 0 by the Fourier restriction norm method. The result is a refinement of our previous paper (Huo and Jia, 2005 Huo , Z. , Jia , Y. ( 2005 ). The Cauchy problem for the fourth-order nonlinear Schrödinger equation related to the vortex filament . J. Diff. Eq. 214 : 1 – 35 . [Google Scholar] ).