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nlin.PS2009★ 1 cited
Bifurcation of gap solitons in periodic potentials with a sign-varying nonlinearity coefficient
Juan Belmonte-Beitia, Dmitry Pelinovsky
We address the Gross--Pitaevskii (GP) equation with a periodic linear potential and a periodic sign-varying nonlinearity coefficient. Contrary to the claims in the previous works o…
nlin.PS2005
Travelling kinks in discrete phi^4 models
O. F. Oxtoby, D. E. Pelinovsky, I. V. Barashenkov
In recent years, three exceptional discretizations of the phi^4 theory have been discovered [J.M. Speight and R.S. Ward, Nonlinearity 7, 475 (1994); C.M. Bender and A. Tovbis, J. M…