争吵 发表于 2025-3-28 15:19:52

,Methods of enumerating Kekulé structures, exemplified by applications to rectangle-shaped benzenoid by several methods. The oblate rectangles, R.(., .), with fixed values of . are treated most extensively and used to exemplify different procedures based on the method of fragmentation (chopping, summation), a fully computerized method (fitting of polynominal coefficients), application of the John-

Visual-Acuity 发表于 2025-3-28 18:59:16

http://reply.papertrans.cn/16/1503/150266/150266_42.png

BILK 发表于 2025-3-29 02:24:10

http://reply.papertrans.cn/16/1503/150266/150266_43.png

借喻 发表于 2025-3-29 05:21:37

https://doi.org/10.1057/9780230358911: either a (perturbative) restriction to a smaller model space or orthogonalization of a suitable natural basis for the model space. The known properties of the models are indicated, and possible methods of solution are mentioned. A great diversity of work is outlined, related, systematized and extended. New research is suggested.

某人 发表于 2025-3-29 08:20:00

Andrea Morán Ferrés,Miguel Fernández Labayen in the last few years. In this chapter we review the main results and give a rigorous proof for some necessary and sufficient conditions for the existence of Kekulé structures in a benzenoid system. In addition, by using the above results, a construction method of some concealed non-Kekuléan benzenoid systems is given.

曲解 发表于 2025-3-29 15:18:19

http://reply.papertrans.cn/16/1503/150266/150266_46.png

Vulvodynia 发表于 2025-3-29 18:59:35

http://reply.papertrans.cn/16/1503/150266/150266_47.png

CURT 发表于 2025-3-29 20:31:30

,The existence of Kekulé structures in a benzenoid system, in the last few years. In this chapter we review the main results and give a rigorous proof for some necessary and sufficient conditions for the existence of Kekulé structures in a benzenoid system. In addition, by using the above results, a construction method of some concealed non-Kekuléan benzenoid systems is given.

Ingratiate 发表于 2025-3-30 01:03:47

http://reply.papertrans.cn/16/1503/150266/150266_49.png
页: 1 2 3 4 [5]
查看完整版本: Titlebook: Advances in the Theory of Benzenoid Hydrocarbons; Ivan Gutman,Sven J. Cyvin Conference proceedings 1990 Springer-Verlag Berlin Heidelberg