The Lichnerowicz-Weitzenböck formula and superconductivity

2013 ◽  
Vol 54 (1) ◽  
pp. 013101 ◽  
Author(s):  
Alfredo A. Vargas-Paredes ◽  
Mauro M. Doria ◽  
José Abdala Helayël Neto
Keyword(s):  
2012 ◽  
Vol 09 (07) ◽  
pp. 1250061 ◽  
Author(s):  
ESMAEIL PEYGHAN ◽  
AKBAR TAYEBI ◽  
CHUNPING ZHONG

Recently the third author studied horizontal Laplacians in real Finsler vector bundles and complex Finsler manifolds. In this paper, we introduce a class of g-natural metrics Ga,b on the tangent bundle of a Finsler manifold (M, F) which generalizes the associated Sasaki–Matsumoto metric and Miron metric. We obtain the Weitzenböck formula of the horizontal Laplacian associated to Ga,b, which is a second-order differential operator for general forms on tangent bundle. Using the horizontal Laplacian associated to Ga,b, we give some characterizations of certain objects which are geometric interest (e.g. scalar and vector fields which are horizontal covariant constant) on the tangent bundle. Furthermore, Killing vector fields associated to Ga,b are investigated.


2005 ◽  
Vol 16 (09) ◽  
pp. 1017-1031 ◽  
Author(s):  
QUN HE ◽  
YI-BING SHEN

By simplifying the first and the second variation formulas of the energy functional and generalizing the Weitzenböck formula, we study the stability and the rigidity of harmonic maps between Finsler manifolds. It is proved that any nondegenerate harmonic map from a compact Einstein Riemannian manifold with nonnegative scalar curvature to a Berwald manifold with nonpositive flag curvature is totally geodesic and there is no nondegenerate stable harmonic map from a Riemannian unit sphere Sn (n > 2) to any Finsler manifold.


2014 ◽  
Vol 252 ◽  
pp. 429-448 ◽  
Author(s):  
Shin-ichi Ohta ◽  
Karl-Theodor Sturm

2010 ◽  
Vol 58 (2) ◽  
pp. 179-188 ◽  
Author(s):  
Adam Bartoszek ◽  
Jerzy Kalina ◽  
Antoni Pierzchalski
Keyword(s):  

1995 ◽  
Vol 137 ◽  
pp. 149-181 ◽  
Author(s):  
Mitsuhiro Itoh

(Anti-)self-dual metrics are 4-dimensional Riemannian metrics whose Weyl conformai tensor W half vanishes. The Weyl conformai tensor W of an arbitrary metric on an oriented 4-manifold has in general the self-dual part W+ and the anti-self-dual part W− with respect to the Hodge star operator * and one says that a metric is self-dual or anti-self-dual if W− = 0 or W+ = 0, respectively.


Sign in / Sign up

Export Citation Format

Share Document