Titlebook: Electron-Electron Correlation Effects in Low-Dimensional Conductors and Superconductors; Alexandr. A. Ovchinnikov,Ivan I. Ukrainskii Confe

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Dynamical Correlation in Finite Polymethine Chainsic compounds can be interpreted in terms of intermediates between three ideal states: the aromatic state, the polyene state and the polymethine state. All these three states are realized in finite polymethine cyclic or open chains, which contain a methine group CH as elementary link and arbitrary terminal groups (in open chains).

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Regulation by Metabolic Substrates,igh-.. superconductors (HTSC) [1–3], the HTSC theory is in progress. In accord with a number of papers [4, 5], the htsc can be explained by electron pairing due to electron correlation effects. Correlation electron pairs appear in 1-d [6–8] and 2-d Hubbard models [4, 5].

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Mets552

In Zeiten des Wandels herrscht Chaosristics which is related to the curvature tensor (the space part of the total anomaly) we introduce the characteristics which is related to the curvature scalar. The induced vacuum charge on a noncompact simply-connected surface in external magnetic field is found to depend on the latter characteris

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Developing an Integrated Systemoreticians and experimentators (see Review [2]). This interest, on the one hand, is due to advances in synthesis of polyacetylene (PA) polydiacetylene (PDA), organic crystalline conductors based on6 molecular donors and acceptor of electron [2]. On the other hand, one-dimensional (1-d) conductors ar

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https://doi.org/10.1007/978-3-642-39152-1ch a general approach that leads to approximate but reliable consideration as well as to the exact one. Therefore, when describing the electronic structure of molecular systems we favour the most extended . which is supplied us by the operator algebra. An important advantage of the study in terms of

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Industrial Relations at the Place of Work,ic compounds can be interpreted in terms of intermediates between three ideal states: the aromatic state, the polyene state and the polymethine state. All these three states are realized in finite polymethine cyclic or open chains, which contain a methine group CH as elementary link and arbitrary te