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Compactness properties of critical nonlinearities and nonlinear Schrödinger equations
- Part of
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- Journal:
- Proceedings of the Edinburgh Mathematical Society / Volume 56 / Issue 2 / June 2013
- Published online by Cambridge University Press:
- 05 April 2013, pp. 427-441
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We prove the compactness of critical Sobolev embeddings with applications to nonlinear singular Schrödinger equations and provide a unified treatment in dimensions N > 2 and N = 2, based on a somewhat unexpectedly broad array of parallel properties between spaces
and H10 of the unit disc. These properties include Leray inequality for N = 2 as a counterpart of Hardy inequality for N > 2, pointwise estimates by ground states r(2−N)/2 and 
of the respective Hardy-type inequalities, as well as compactness of the limiting Sobolev embeddings once the Sobolev norm is appended by a potential term whose growth at singularities exceeds that of the corresponding Hardy-type potential.
and 
of the respective Hardy-type inequalities, as well as compactness of the limiting Sobolev embeddings once the Sobolev norm is appended by a potential term whose growth at singularities exceeds that of the corresponding Hardy-type potential.Solutions of perturbed Schrödinger equations with electromagnetic fields and critical nonlinearity
- Part of
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- Journal:
- Proceedings of the Edinburgh Mathematical Society / Volume 54 / Issue 1 / February 2011
- Published online by Cambridge University Press:
- 28 October 2010, pp. 131-147
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We consider the existence and multiplicity of standing-wave solutions
of nonlinear Schrödinger equations with electromagnetic fields and critical nonlinearity
Under suitable assumptions, we prove that it has at least one solution and that, for any m ∈ ℕ, it has at least m pairs of solutions.
