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A new derivation and interpretation of Yule's ‘Characteristic’K

✍ Scribed by Gustav Herdan

Book ID
105250524
Publisher
Springer
Year
1955
Tongue
English
Weight
374 KB
Volume
6
Category
Article
ISSN
0044-2275

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📜 SIMILAR VOLUMES

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## Abstract A hierarchy of necessary conditions that an exact density matrix of a pure state or an ensemble has to satisfy is derived, namely the hermiticity of certain operators __F__^(__k__)^. For __k__ = 1 this reduces to the well‐known Hartree‐Fock condition. It is then shown that the __k__th s

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Communicated by A. AABOE 0 ~ Among PTOLEMY'S works are two whose mathematical bases historians of science have interpreted in very much the same way. The works are The Planispherium and the cartographic sections of The Geography, and in both cases the interpretation has been in terms of pointwise pr