Abstract
In this chapter we develop powerful techniques for proving existence of bound states (eigenfunctions) corresponding to isolated eigenvalues. We also give estimates of their number.
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© 2012 Springer-Verlag Berlin Heidelberg
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Gustafson, S.J., Sigal, I.M. (2012). Bound States and Variational Principle. In: Mathematical Concepts of Quantum Mechanics. Universitext. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-21866-8_8
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DOI: https://doi.org/10.1007/978-3-642-21866-8_8
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-21865-1
Online ISBN: 978-3-642-21866-8
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