Harmonic forms and spinors on the Taub-bolt space
Harmonic forms and spinors on the Taub-bolt space
复制标题
Taub-bolt 空间上的调和形式和旋量
DOI:
10.1016/j.geomphys.2019.03.005
复制
发表时间:
2018
影响因子:
1.5
通讯作者:
G. Franchetti
中科院分区:
文献类型:
--
作者:
G. Franchetti
This paper studies the space of L 2 harmonic forms and L 2 harmonic spinors on Taub-bolt, a Ricci-flat Riemannian 4-manifold of ALF type. We prove that the space of harmonic square-integrable 2-forms on Taub-bolt is 2-dimensional and construct a basis. We explicitly find all L 2 zero modes of D̸ A, the Dirac operator twisted by an arbitrary L 2 harmonic connection A, and independently compute the index of D̸ A. We compare our results with those known in the case of Taub-NUT and Euclidean Schwarzschild as these manifolds present interesting similarities with Taub-bolt. In doing so, we generalise known results concerning harmonic spinors on Euclidean Schwarzschild.
影响因子:
5.4
作者:
Franchetti G
通讯作者:
Franchetti G