Items where Author is "Ballmann, W."

Ballmann, W. and Brüning, J. and Carron, G. (2007) Regularity and index theory for Dirac-Schrödinger systems with Lipschitz coeffic. MPIM Preprint Series 2007 (24).

Buyalo, S. and Ballmann, W. (2002) Periodic rank one geodesics in Hadamard spaces. MPIM Preprint Series 2002 (92).