Ackermann, Nils Uniform continuity and Brézis-Lieb-type splitting for superposition operators in Sobolev space. (English) Zbl 06992610 Adv. Nonlinear Anal. 7, No. 4, 587-599 (2018). MSC: 47H30 58E40 PDF BibTeX XML Cite \textit{N. Ackermann}, Adv. Nonlinear Anal. 7, No. 4, 587--599 (2018; Zbl 06992610) Full Text: DOI arXiv OpenURL
Ackermann, Nils; Bartsch, Thomas; Kaplický, Petr; Quittner, Pavol A priori bounds, nodal equilibria and connecting orbits in indefinite superlinear parabolic problems. (English) Zbl 1143.37049 Trans. Am. Math. Soc. 360, No. 7, 3493-3539 (2008). Reviewer: Boris V. Loginov (Ul’yanovsk) MSC: 37L05 35K20 35K55 37L10 47H20 PDF BibTeX XML Cite \textit{N. Ackermann} et al., Trans. Am. Math. Soc. 360, No. 7, 3493--3539 (2008; Zbl 1143.37049) Full Text: DOI OpenURL
Ackermann, Nils An abstract approach to multibump solutions of periodic Schrödinger equations and applications. (English) Zbl 1224.35112 Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 63, No. 5-7, e1031-e1037 (2005). MSC: 35J60 35B10 47J30 PDF BibTeX XML Cite \textit{N. Ackermann}, Nonlinear Anal., Theory Methods Appl., Ser. A, Theory Methods 63, No. 5--7, e1031--e1037 (2005; Zbl 1224.35112) Full Text: DOI OpenURL
Ackermann, Nils; Bartsch, Thomas Superstable manifolds of semilinear parabolic problems. (English) Zbl 1129.35428 J. Dyn. Differ. Equations 17, No. 1, 115-173 (2005). MSC: 35K20 37L05 35K55 37L10 47H20 PDF BibTeX XML Cite \textit{N. Ackermann} and \textit{T. Bartsch}, J. Dyn. Differ. Equations 17, No. 1, 115--173 (2005; Zbl 1129.35428) Full Text: DOI 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