On virial expansions of correlation functions. Canonical ensemble
UDC 517.9 We present a survey of works of the Kyiv School of Mathematicians published in Soviet journals in the 1940–70s. The main results are presented in the language of contemporary methods  of infinite-dimensional analysis, which significantly simplifies their pro...
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| Date: | 2023 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Institute of Mathematics, NAS of Ukraine
2023
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| Online Access: | https://umj.imath.kiev.ua/index.php/umj/article/view/7504 |
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| Journal Title: | Ukrains’kyi Matematychnyi Zhurnal |
| Download file: |  |
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Ukrains’kyi Matematychnyi Zhurnal| Summary: | UDC 517.9
We present a survey of works of the Kyiv School of Mathematicians published in Soviet journals in the 1940–70s. The main results are presented in the language of contemporary methods  of infinite-dimensional analysis, which significantly simplifies their proofs.  Nonlinear (in the density parameter) Kirkwood–Salzburg-type equations  are obtained for the correlation functions of  canonical ensemble. The existence and uniqueness of  solution is established under the conditions of high temperature and low density. The material presented in our survey is supplemented by the original research of one of the authors [A. L. Rebenko, Virial expansions for correlation functions in canonical ensemble,  Preprint arXiv:2205.07095 [math-ph], https://doi.org/10.48550/arXiv.2205.07095] in which new expansions  in  the density parameter are constructed for the correlation functions. |
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| DOI: | 10.37863/umzh.v75i5.7504 |