We determine at what occasion while the compact 3-manifolds with residually finite groups have only finitely many finite covers, and while those have only finitely many finite cyclic covers.

 
  • 本文给出基本群为剩余有限的紧致3维流形何时有有限多有限复迭,何时有有限多有限循环复迭的充要条件。
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