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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.

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Existence and multiplicity results for some superlinear elliptic problems on RN

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.
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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.
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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.
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On an elliptic equation with concave and convex nonlinearities

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.