Group Actions and Covering Maps
In the preceding chapter, we introduced covering spaces, and answered the isomorphism question for coverings: two coverings of the same space are isomorphic if and only if they induce the same conjugacy class of subgroups of the fundamental group of the base. In this chapter, we study the question of existence of coverings.
KeywordsAutomorphism Group Conjugacy Class Fundamental Group Orbit Space Normal Covering
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