Determining the shape of the universe using discrete sources

  title={Determining the shape of the universe using discrete sources},
  author={G. I. Gomero},
  journal={Classical and Quantum Gravity},
  • G. I. Gomero
  • Published 6 May 2003
  • Physics
  • Classical and Quantum Gravity
Suppose we have identified three clusters of galaxies as being topological copies of the same object. How does this information constrain the possible models for the shape of our universe? It is shown here that, if our universe has flat spatial sections, these multiple images can be accommodated within any of the six classes of compact orientable three-dimensional flat space forms. Moreover, the discovery of two more triples of multiple images in the neighbourhood of the first one would allow… 
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