On the existence of closed magnetic geodesics via symplectic reduction
On the existence of closed magnetic geodesics via symplectic reduction
复制标题
辛约简论闭磁测地线的存在性
DOI:
--
复制
发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Felix Schmäschke
中科院分区:
文献类型:
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作者:
L. Asselle;Felix Schmäschke
Let (M, g) be a closed Riemannian manifold and $$\sigma $$σ be a closed 2-form on M representing an integer cohomology class. In this paper, using symplectic reduction, we show how the problem of existence of closed magnetic geodesics for the magnetic flow of the pair $$(g,\sigma )$$(g,σ) can be interpreted as a critical point problem for a Rabinowitz-type action functional defined on the cotangent bundle $$T^*E$$T∗E of a suitable $$S^1$$S1-bundle E over M or, equivalently, as a critical point problem for a Lagrangian-type action functional defined on the free loopspace of E. We thenstudy the relation between the stability property of energy hypersurfacesin $$(T^*M,dp\wedge dq+\pi ^*\sigma )$$(T∗M,dp∧dq+π∗σ) and of the corresponding codimension2 coisotropic submanifolds in $$(T^*E,dp\wedge dq)$$(T∗E,dp∧dq) arising via symplecticreduction. Finally, we reprove the main result of Asselle and Benedetti (J Topol Anal 8(3):545–570, 2016) in this setting.
影响因子:
0.8
作者:
L. Asselle;G. Benedetti
通讯作者:
G. Benedetti
DOI:
10.1007/s00526-015-0834-1
发表时间:
2015
影响因子:
2.1
作者:
L. Asselle;G. Benedetti
通讯作者:
G. Benedetti