Real Killing spinors and holonomy C Bär Communications in mathematical physics 154, 509-521, 1993 | 482 | 1993 |
Wave equations on Lorentzian manifolds and quantization C Bär, N Ginoux, F Pfäffle European Mathematical Society, 2007 | 439 | 2007 |
Generalized cylinders in semi-Riemannian and spin geometry C Bär, P Gauduchon, A Moroianu Mathematische Zeitschrift 249, 545-580, 2005 | 188 | 2005 |
Lower eigenvalue estimates for Dirac operators C Bär Mathematische Annalen 293, 39-46, 1992 | 156 | 1992 |
Extrinsic bounds for eigenvalues of the Dirac operator C Bär Annals of Global Analysis and Geometry 16, 573-596, 1998 | 146 | 1998 |
Metrics with harmonic spinors C Bär Geometric & Functional Analysis GAFA 6 (6), 899-942, 1996 | 133 | 1996 |
Elementary differential geometry C Bär Cambridge University Press, 2010 | 121 | 2010 |
The Dirac operator on space forms of positive curvature C Bär Journal of the Mathematical Society of Japan 48 (1), 69-83, 1996 | 120 | 1996 |
Quantum Field Theory on Curved Spacetimes: Concepts and Mathematical Foundations C Bär, K Fredenhagen Springer-Verlag Berlin Heidelberg, 2009 | 117 | 2009 |
Green-hyperbolic operators on globally hyperbolic spacetimes C Bär Communications in mathematical physics 333, 1585-1615, 2015 | 110 | 2015 |
Boundary value problems for elliptic differential operators of first order C Bär, W Ballmann arXiv preprint arXiv:1101.1196, 2011 | 106 | 2011 |
On nodal sets for Dirac and Laplace operators C Bär Communications in mathematical physics 188, 709-721, 1997 | 85 | 1997 |
The Dirac operator on nilmanifolds and collapsing circle bundles B Ammann, C Bär Annals of Global Analysis and Geometry 16, 221-253, 1998 | 81 | 1998 |
Classical and quantum fields on Lorentzian manifolds C Bär, N Ginoux Global differential geometry, 359-400, 2011 | 80 | 2011 |
Elementare Differentialgeometrie C Bär (No Title), 2001 | 80 | 2001 |
The Dirac operator on hyperbolic manifolds of finite volume C Bär Journal of Differential Geometry 54 (3), 439-488, 2000 | 79 | 2000 |
Zero sets of solutions to semilinear elliptic systems of first order C Bär Inventiones mathematicae 138 (1), 183-202, 1999 | 75 | 1999 |
An index theorem for Lorentzian manifolds with compact spacelike Cauchy boundary C Bär, A Strohmaier American Journal of Mathematics 141 (5), 1421-1455, 2019 | 67 | 2019 |
The Dirac operator on homogeneous spaces and its spectrum on 3-dimensional lens spaces C Bär Archiv der Mathematik 59 (1), 65-79, 1992 | 63 | 1992 |
Elementare Differentialgeometrie C Bär Walter de Gruyter, 2010 | 60 | 2010 |