TY - JOUR A1 - FernΓ‘ndez, Antonio J. A1 - Weth, Tobias T1 - The nonlinear SchrΓΆdinger equation in the half-space T2 - Mathematische Annalen N2 - The present paper is concerned with the half-space Dirichlet problem [...] where ℝ𝑁+:={π‘₯βˆˆβ„π‘:π‘₯𝑁>0} for some 𝑁β‰₯1 and 𝑝>1, 𝑐>0 are constants. We analyse the existence, non-existence and multiplicity of bounded positive solutions to (𝑃𝑐). We prove that the existence and multiplicity of bounded positive solutions to (𝑃𝑐) depend in a striking way on the value of 𝑐>0 and also on the dimension N. We find an explicit number π‘π‘βˆˆ(1,π‘’βˆš), depending only on p, which determines the threshold between existence and non-existence. In particular, in dimensions 𝑁β‰₯2, we prove that, for 0<𝑐<𝑐𝑝, problem (𝑃𝑐) admits infinitely many bounded positive solutions, whereas, for 𝑐>𝑐𝑝, there are no bounded positive solutions to (𝑃𝑐). Y1 - 2021 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/74742 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-747421 SN - 1432-1807 N1 - Open Access funding enabled and organized by Projekt DEAL. VL - 383 IS - 1–2 SP - 361 EP - 397 PB - Springer CY - Berlin ; Heidelberg ER -