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Non-separable surfaces in cubed manifolds |
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| Authors: | Saburo Matsumoto |
| Institution: | Department of Mathematics, University of Melbourne, Parkville, Victoria 3052 Australia |
| Abstract: | We show that there are 3-manifolds with cubings of non-positive curvature such that their fundamental groups are not subgroup separable (LERF). We also give explicit examples of non-separable surfaces in certain cubed manifolds. |
| Keywords: | Cubed manifolds separable surfaces |
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