Abstract
The revolvent R(z) = (z − H)−1 and the spectral measure E(·) of a selfadjoint operator H, together with the spectral parameter λ are called stationary terms with respect to H. On the other hand, the unitary evolution group e−itH, where t is interpreted as time, is called a time-dependent term with respect to H.
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© 1983 Springer Basel AG
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Baumgärtel, H., Wollenberg, M. (1983). Stationary Theory. In: Mathematical Scattering Theory. Operator Theory: Advances and Applications, vol 9. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-5440-5_14
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DOI: https://doi.org/10.1007/978-3-0348-5440-5_14
Publisher Name: Birkhäuser, Basel
Print ISBN: 978-3-0348-5442-9
Online ISBN: 978-3-0348-5440-5
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