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nlin.SI2014★ 2 cited
Roles of Interfering Radiation Emitted from Decaying Pulses Obeying Soliton Equations Belonging to the Ablowitz-Kaup-Newell-Segur Systems
Hironobu Fujishima, Tetsu Yajima
The nonlinear Schrodinger (NLS) equation under the box-type initial condition, which models general multiple pulses deviating from pure solitons, is analyzed. Following the approxi…
cond-mat.quant-gas2014
Amended Proof of Pitaevskii-Stringari's Theorem
Hironobu Fujishima, Tetsu Yajima
An amended proof of Pitaevskii-Stringari's theorem is given in mathematically coherent manner without resorting to the Bogoliubov approximation. This approach is based on the ortho…