14 citations · 37 across the 12 of their papers we have counts for
7 papers · 1 filter
The Realization of 3D Topological Spaces Branched Over Graphs
Christopher L Duston
In this paper we present an implementation of a computer algorithm that automatically determines the topological structure of spacetime, using a branched covering space representat…
Metrics on End-Periodic Manifolds as Models for Dark Matter
Christopher L Duston
In this paper we will detail an approach to generate metrics and matter models on end-periodic manifolds, which are used extensively in the study of the exotic smooth structures of…
Cosmic Strings in Conformal Gravity
Reinoud Jan Slagter
We investigate the spacetime of a spinning cosmic string in conformal invariant gravity, where the interior consists of a gauged scalar field. We find exact solutions of the exteri…
The Fundamental Group of a Spatial Section Represented by a Topspin Network
Christopher L Duston
We present an algorithm which determines the fundamental group of a spatial section using topspin networks. Tracking the topology of the spatial section is a unique feature of this…
Semiclassical Partition Functions for Gravity with Cosmic Strings
Christopher L. Duston
In this paper we describe an approach to construct semiclassical partition functions in gravity which are complete in the sense that they contain a complete description of the diff…
Topspin Networks in Loop Quantum Gravity
Christopher L. Duston
We discuss the extension of loop quantum gravity to topspin networks, a proposal which allows topological information to be encoded in spin networks. We will show that this require…
Exotic Smoothness in Four Dimensions and Euclidean Quantum Gravity
Christopher L Duston
In this paper we calculate the effect of the inclusion of exotic smooth structures on typical observables in Euclidean quantum gravity. We do this in the semiclassical regime for s…