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On the behavior of solutions to Schrödinger equations with dipole type potentials near the singularity. (English) Zbl 1141.35362

Summary: Asymptotics of solutions to Schrödinger equations with singular dipole-type potentials are investigated. We evaluate the exact behavior near the singularity of solutions to elliptic equations with potentials which are purely angular multiples of radial inverse-square functions. Both the linear and the semilinear (critical and subcritical) cases are considered.

MSC:

35J10 Schrödinger operator, Schrödinger equation
35B40 Asymptotic behavior of solutions to PDEs
35J60 Nonlinear elliptic equations