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math-ph2005★ 7 cited
Point interactions in acoustics: one dimensional models
C. Cacciapuoti, R. Figari, A. Posilicano
A one dimensional system made up of a compressible fluid and several mechanical oscillators, coupled to the acoustic field in the fluid, is analyzed for different settings of the o…
math-ph1999
Delta Interactions and Electrodynamics of Point Particles
Diego Noja, Andrea Posilicano
We report on some recent work of the authors showing the relations between singular (point) perturbation of the Laplacian and the dynamical system describing a charged point partic…