T
Thomas Bartsch
Researcher at University of Giessen
Publications - 150
Citations - 7735
Thomas Bartsch is an academic researcher from University of Giessen. The author has contributed to research in topics: Bounded function & Nonlinear system. The author has an hindex of 43, co-authored 142 publications receiving 6534 citations. Previous affiliations of Thomas Bartsch include Université catholique de Louvain & Heidelberg University.
Papers
More filters
Journal ArticleDOI
Existence and multiplicity results for some superlinear elliptic problems on RN
Thomas Bartsch,Zhi-Qiang Wang +1 more
TL;DR: In this paper, the semilinear elliptic PDE in RN was studied and the existence of a positive solution under various hypotheses was proved under the assumption that the nonlinearity will be superlinear and subcritical.
Journal ArticleDOI
Nonlinear schrödinger equations with steep potential well
TL;DR: In this article, the authors investigate nonlinear Schrodinger equations like the model equation and show that as λ → ∞, the infimum of the essential spectrum of -Δ + Vλ in L2(ℝN) converges towards ∞ and more and more eigenvalues appear below the fundamental spectrum.
Journal ArticleDOI
Critical point theory for asymptotically quadratic functionals and applications to problems with resonance
Thomas Bartsch,Shujie Li +1 more
Journal ArticleDOI
A Liouville theorem, a-priori bounds, and bifurcating branches of positive solutions for a nonlinear elliptic system
TL;DR: In this paper, the local and global bifurcation structure of positive solutions of nonlinear elliptic Schrodinger type equations was studied in nonlinear optics and Hartree-Fock theory for a double condensate.
Journal ArticleDOI
On an elliptic equation with concave and convex nonlinearities
Thomas Bartsch,Michel Willem +1 more
TL;DR: In this paper, the authors studied the Dirichlet boundary condition of the semilinear elliptic equation and showed that the existence of infinitely many critical values of an even functional in a bounded range can be guaranteed.