In this paper we study a class of ninth degree system and obtain the conditions that its four singular points can be general centers and isochronous centers (or linearizable centers) at the same time by computing carefully and strict proof. What is worth mentioning is that the expressions of Liapuno
Synthesis of a superphane dimer—a metallocenophane with four metal centers
✍ Scribed by Rolf Roers; Jasmin Hofmann; Joerg Classen; Rolf Gleiter
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- French
- Weight
- 76 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0040-4039
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