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  • Chemistry  (2)
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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 42 (1959), S. 2285-2303 
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A method for calculating the eigenvalues of a particle moving in a one-dimensional potential, given as V(ξ) = υ1 ξ + υ2ξ2 + υ3ξ3 +… is described. It is a variational method which makes use of linear combinations of HERMITE orthogonal functions \documentclass{article}\pagestyle{empty}\begin{document}$ \Phi (\xi) = \sum\limits_{n = 0}^{N - 1} {c_n u_n } (\xi) $\end{document}, the recursion properties of which allow for the calculation of the matrix elements Hnm and Snm in closed form without involving any further approximation. As the matrix H = (Hnm) is a band matrix, the corresponding eigenvalue problem can be solved by applying the LR-transformation, which yields the eigenvalues in the order of their stability, so that the calculation may be stopped after the required number of the lowest levels has been calculated.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 42 (1959), S. 2304-2314 
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A previously described method for the automatic calculation of the eigenvalues of a particle moving in a potential expressible as V(ξ) = υ1ξ + υ2ξ2 + … + υk ξk (k even) has been applied to calculate the eigenvalues for the linear sixth power oscillator. The thermodynamic functions of this oscillator have been obtained and its wave function and transition integrals have been compared with those of the linear fourth power oscillator. An example has been given of the use of the sixth power potential as the base potential in double minima problems.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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