1Cazenave, T. & Weissler, F. B., Some Remarks on the Nonlinear Schrodinger Equation in the Critical Case [M], Lecture Notes in Mathematics, 1394, 18-29, Springer, Berlin,1989.
2Ghidaglia, J. M. & Saut, J. C., Nonelliptic Schrodinger equations [J], J. Nonlin. Sci.,3(1993), 169-195.
3Ghidaglia, J. M. & Saut, J. C., Nonexistence of travelling wave solutions to nonelliptic nonlinear Schrodinger equations [J], J. Nonlin. Sci., 6(1996), 139-145.
4Ginibre, J. & Velo, G., On a class of nonlinear Schrodinger equations I: The Cauchy problem [J], J. Funct. Anal., 32(1979), 1-32.
5Kenig, C. E., Ponce, G. & Vega, L., On the IVP for the Nonlinear Schrodinger Equations[M], Contemporary Mathematics, Vol.189, 1995, American Mathematical Society.
6Kenig, C. E., Ponce, G. & Vega, L., Smoothing effects and local existence theory for the generalized nonlinear Schrodinger equations [J], Invent. Math., 134(1998), 489-545.
7Strichartz, R. S., Restrictions of Fourier transforms to quadratic surfaces and decay of solutions of wave equations [J], Duke Math. J., 44(1977), 705-714.
8Sulem, C. & Sulem, P. L., The Nonlinear Schrodinger Equation Self-focusing and Wave Collapse [M], Applied Mathematical Sciences, Vol.139, Springer, 1999.
9Tsutsumi, Y., L^2-solutions for nonlinear Schrodinger equations and nonlinear group[J], Funk. Ekva., 30(1987), 115-125.
10Weinstein, M., Nonlinear Schrodinger equations and sharp interpolation estimates [J],Comm. Math. Phys., 87(1983), 567-576.