99-86 Adami R., Teta A.
A Simple Model of Concentrated Nonlinearity. (18K, LATeX 2e) Mar 29, 99
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Abstract. We study the nonlinear Schroedinger equation in dimension one with a nonlinearity concentrated in a point. We give results on local and global existence of the solution and find conditions for the blow-up. In the critical case an explicit blow-up solution is constructed.

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