Geometry of singular space

This paper grew out of my talk for the inauguration of the Riemann Center in Hanover, Germany. In an attempt to understand what Riemann said in his famous paper in 1854 on the foundation of geometry, I propose a theory of geometry that hopefully can be used to understand singular space that may still satisfy the Einstein equation in a generalized sense. Some calculations are made in the appendix that allow us to perform Hodge theory, to calculate the heat kernel within our abstract framework.

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Published 9 April 2013