TY - JOUR T1 - Ground States to the Generalized Nonlinear Schrödinger Equations with Bernstein Symbols AU - Seok , Jinmyoung AU - Hong , Younghun JO - Analysis in Theory and Applications VL - 2 SP - 157 EP - 177 PY - 2021 DA - 2021/04 SN - 37 DO - http://doi.org/10.4208/ata.2021.pr80.06 UR - https://global-sci.org/intro/article_detail/ata/18769.html KW - Generalized NLS, solitary waves, variational methods, Bernstein symbols. AB -

This paper concerns with existence and qualitative properties of ground states to generalized nonlinear Schrödinger equations (gNLS) with abstract symbols. Under some structural assumptions on the symbol, we prove a ground state exists and it satisfies several fundamental properties that the ground state to the standard NLS enjoys. Furthermore, by imposing additional assumptions, we construct, in small mass case, a nontrivial radially symmetric solution to gNLS with $H^1$-subcritical nonlinearity, even if the natural energy space does not control the $H^1$-subcritical nonlinearity.