Geyler V.A., Popov I.Yu., Popova S.L.
Transmission coefficient for ballistic transport
       through quantum resonator
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ABSTRACT.  A model for the description of  ballistic transport  in 1D-2D-1D
system based  on  the  theory  of self-adjoint extensions of
symmetric operators is suggested. Formula for transmission
coefficient for the system, particurlarly, in the case of presense
of a magnetic field, is obtained.