
VOLUME 57 (1993)  ISSUE 10 
PAGE 606

New restrictions on spatial topology of the universe from microwave background temperature fluctuations
Starobinsky A.A.
If the Universe has the topology of a 3torus (X^{3}), then it follows from recent data on largescale temperature fluctuations AT/T of the cosmic microwave background that either the minimal size of the torus is at least of the order of the present cosmological horizon, or the largescale AT jT pattern should have a symmetry plane (in case of the effective T^{1} topology) or a symmetry axis (in case of the effective T^{2} topology), the latter possibility being probably excluded by the data.

