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• Die lokale Struktur von T-Dualitätstripeln ﻿

(2007-12-06)
There are different approaches for a mathematical understanding of T-duality. We show that the C*-algebraic approach of Mathai and Rosenberg is equivalent to the topological approach of ...
• On the resolvent of the Laplacian on functions for degenerating surfaces of finite geometry ﻿

(2005-06-21)
We consider families $(Y_n)$ of degenerating hyperbolic surfaces. The surfaces are geometrically finite of fixed topological type. Let $Z_n$ be the Selberg Zeta function of $Y_n$, and let ...