Degree one maps of Seifert manifolds and a note on Seifert volume
β Scribed by Yongwu Rong
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 629 KB
- Volume
- 64
- Category
- Article
- ISSN
- 0166-8641
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π SIMILAR VOLUMES
The fundamental group of compact isoenergy manifolds of natural n-degree of freedom Hamiltonian systems is discussed. It is demonstrated that a certain topology of corresponding accessible region in configuration space gives rise to topological obstruction to the existence of global Poincar e e sect
Let vt(d, 2) be the largest order of a vertex-transitive graph of degree d and diameter 2. It is known that vt(d, 2)=d 2 +1 for d=1, 2, 3, and 7; for the remaining values of d we have vt(d, 2) d 2 &1. The only known general lower bound on vt(d, 2), valid for all d, seems to be vt(d, 2) w(d+2)Γ2x W(d