For citations:
Lotoreichik V. Note on 2D Schrödinger operators with δ-interactions on angles and crossing lines. Nanosystems: Physics, Chemistry, Mathematics. 2013;4(2):166-172.
Lotoreichik V. Note on 2D Schrödinger operators with δ-interactions on angles and crossing lines. Nanosystems: Physics, Chemistry, Mathematics. 2013;4(2):166-172.