H. Nawa, 2 POINTS BLOW-UP IN SOLUTIONS OF THE NONLINEAR SCHRODINGER-EQUATION WITH QUARTIC POTENTIAL ON R, Journal of statistical physics, 91(1-2), 1998, pp. 439-458
We consider the blow-up problem for the nonlinear Schrodinger equation
with quartic self-interacting potential on R. We exhibit a class of i
nitial data leading to the blow-up solutions which have at least two L
-2-concentration points.