Ackermann, Nils; Weth, Tobias Unstable normalized standing waves for the space periodic NLS. (English) Zbl 1405.35191 Anal. PDE 12, No. 5, 1177-1213 (2019). MSC: 35Q55 35J91 35J20 PDF BibTeX XML Cite \textit{N. Ackermann} and \textit{T. Weth}, Anal. PDE 12, No. 5, 1177--1213 (2019; Zbl 1405.35191) Full Text: DOI arXiv OpenURL
Ackermann, Nils; Weth, Tobias Multibump solutions of nonlinear periodic Schrödinger equations in a degenerate setting. (English) Zbl 1070.35083 Commun. Contemp. Math. 7, No. 3, 269-298 (2005). MSC: 35Q55 35J60 47H07 PDF BibTeX XML Cite \textit{N. Ackermann} and \textit{T. Weth}, Commun. Contemp. Math. 7, No. 3, 269--298 (2005; Zbl 1070.35083) Full Text: DOI OpenURL